Material Submitted on April 1, 2011
What Makes for a Long Life May Surprise You
“Longevity Project participants who were the most cheerful and had the best
sense of humor as kids lived shorter lives, on average, than those who were less
cheerful and joking. It was the most prudent and persistent individuals who
stayed healthiest and lived the longest."
That was the conclusion of one of the lead researchers in the 80 years long
study on longevity, recently published as a book, The
Longevity Project: Surprising
Discoveries for Health and Long Life from the Landmark Eight-Decade Study
(Hudson Street Press). Conducted at the University of California at Riverside,
and building on data first collected at Stanford University, the research
compared personality characteristics of individuals with their health histories
and mortality. The researchers explained the surprising results for positive
thinkers: Kids who are more optimistic take greater risks with their lives.
While optimism is good for dealing with crises, it is less advantageous in the
long run.
Other findings from this study:
Marriage is more of an advantage to men’s health than to women, and women’s
health survives divorce better than does men’s.
Working hard in the later years, being committed to productivity, was associated
with a longer life, for both men and women.
Health and Longevity gains associated with social relationships are greatest
when the person is involved and helping others.
Web source:
Keys to long life: Longevity study unearths surprising answers
Cheer up. Stop worrying. Don't work so hard. Good advice for a long life? As it
turns out, no. In a groundbreaking study of personality as a predictor of
longevity, University of California, Riverside researchers found just the
opposite.
"It's surprising just how often common assumptions – by both scientists and the
media – are wrong," said Howard S. Friedman, distinguished professor of
psychology who led the 20-year study.
Friedman and Leslie R. Martin , a 1996 UCR alumna (Ph.D.) and staff researchers,
have published those findings in "The
Longevity Project:
Surprising Discoveries for Health and Long Life from the Landmark Eight-Decade
Study" (Hudson Street Press, March 2011).
Friedman and Martin examined, refined and supplemented data gathered by the late
Stanford University psychologist Louis Terman and subsequent researchers on more
than 1,500 bright children who were about 10 years old when they were first
studied in 1921. "Probably our most amazing finding was that
personality
characteristics and social relations from childhood can predict one's risk of
dying decades later," Friedman concluded.
The Longevity Project, as the study became known, followed the children through
their lives, collecting information that included family histories and
relationships, teacher and parent ratings of personality, hobbies, pet
ownership, job success, education levels, military service and numerous other
details.
"When we started, we were frustrated with the state of research about individual
differences, stress, health and longevity," Friedman recalled. "It was clear
that some people were more prone to disease, took longer to recover, or died
sooner, while others of the same age were able to thrive. All sorts of
explanations were being proposed – anxiety, lack of exercise, nerve-racking
careers, risk-taking, lack of religion, unsociability, disintegrating social
groups, pessimism, poor access to medical care, and Type A behavior patterns."
But none were well-studied over the long term. That is, none followed people
step-by-step throughout their lives.
When Friedman and Martin began their research in 1991, they planned to spend six
months examining predictors of health and longevity among the Terman
participants.
But the project continued over the next two decades – funded in part by the
National Institute on Aging – and the team eventually involved more than 100
graduate and undergraduate students who tracked down death certificates,
evaluated interviews, and analyzed tens of thousands of pages of information
about the Terman participants through the years.
"We came to a new understanding about happiness and health," said Martin, now a
psychology professor at La Sierra University in Riverside. "One of the findings
that really astounds people, including us, is that the Longevity Project
participants who were the most cheerful and had the best sense of humor as kids
lived shorter lives, on average, than those who were less cheerful and joking.
It was the most prudent and persistent individuals who stayed healthiest and
lived the longest."
Part of the explanation lies in health behaviors – the cheerful, happy-go-lucky
kids tended to take more risks with their health across the years, Friedman
noted. While an optimistic approach can be helpful in a crisis, "we found that
as a general life-orientation, too much of a sense that 'everything will be just
fine' can be dangerous because it can lead one to be careless about things that
are important to health and long life. Prudence and persistence, however, led to
a lot of important benefits for many years. It turns out that happiness is not a
root cause of good health. Instead, happiness and health go together because
they have common roots."
Many of the UCR findings fly in the face of conventional wisdom. For example:
It's never too late to choose a healthier path, Friedman and Martin said. The
first step is to throw away the lists and stop worrying about worrying.
"Some of the minutiae of what people think will help us lead long, healthy
lives, such as worrying about the ratio of omega-6 to omega-3 fatty acids in the
foods we eat, actually are red herrings, distracting us from the major
pathways," Friedman said. "When we recognize the long-term healthy and unhealthy
patterns in ourselves, we can begin to maximize the healthy patterns."
"Thinking of making changes as taking 'steps' is a great strategy," Martin
advised. "You can't change major things about yourself overnight. But making
small changes, and repeating those steps, can eventually create that path to
longer life."
Web link:
http://www.physorg.com/news/2011-03-keys-life-longevity-unearths.html
=======================
Researchers find Atlantis in Spain
Researchers believe they have found evidence for a tsunami buried Atlantis in
some marshland near Cadiz, Spain. Using a combination of deep-ground radar,
digital mapping, and underwater technology to survey the site, an international
team of archaeologists led by the University of Hartford, Connecticut, have been
investigating the area, and their results are going to be shown on a special
edition of National Geographic Channel. The investigation began with the
discovery of several "memorial cities," presumably built in Atlantis' image by
its refugees after the city's likely destruction by a tsunami.
Web source:
NORTHAMPTON, Mass (Reuters) – A U.S.-led research team may have finally located
the lost city of Atlantis, the legendary metropolis believed swamped by a
tsunami thousands of years ago in mud flats in southern Spain.
"This is the power of tsunamis," head researcher Richard Freund told Reuters.
"It is just so hard to understand that it can wipe out 60 miles inland, and
that's pretty much what we're talking about," said Freund, a University of
Hartford, Connecticut, professor who lead an international team searching for
the true site of Atlantis.
To solve the age-old mystery, the team used a satellite photo of a suspected
submerged city to find the site just north of Cadiz, Spain. There, buried in the
vast marshlands of the Dona Ana Park, they believe that they pinpointed the
ancient, multi-ringed dominion known as Atlantis.
The team of archeologists and geologists in 2009 and 2010 used a combination of
deep-ground radar, digital mapping, and underwater technology to survey the
site.
Freund's discovery in central Spain of a strange series of "memorial cities,"
built in Atlantis' image by its refugees after the city's likely destruction by
a tsunami, gave researchers added proof and confidence, he said.
Atlantis residents who did not perish in the tsunami fled inland and built new
cities there, he added.
The team's findings will be unveiled on Sunday in "Finding Atlantis," a new
National Geographic Channel special.
While it is hard to know with certainty that the site in Spain in Atlantis,
Freund said the "twist" of finding the memorial cities makes him confident
Atlantis was buried in the mud flats on Spain's southern coast.
"We found something that no one else has ever seen before, which gives it a
layer of credibility, especially for archeology, that makes a lot more sense,"
Freund said.
Greek philosopher Plato wrote about Atlantis some 2,600 years ago, describing it
as "an island situated in front of the straits which are by you called the
Pillars of Hercules," as the Straits of Gibraltar were known in antiquity. Using
Plato's detailed account of Atlantis as a map, searches have focused on the
Mediterranean and Atlantic as the best possible sites for the city.
Tsunamis in the region have been documented for centuries, Freund says. One of
the largest was a reported 10-story tidal wave that slammed Lisbon in November,
1755.
Debate about whether Atlantis truly existed has lasted for thousands of years.
Plato's "dialogues" from around 360 B.C. are the only known historical sources
of information about the iconic city. Plato said the island he called Atlantis
"in a single day and night... disappeared into the depths of the sea."
Experts plan further excavations are planned at the site where they believe
Atlantis is located and at the mysterious "cities" in central Spain 150 miles
away to more closely study geological formations and to date artifacts.
Web link: http://tinyurl.com/4byfho4
===========================
Brain Feedback Game Improves Happiness
If happiness is a brain event, then can we train our brain to spend more time in
its happy state? Apparently so. Researchers from the University of Louisville
have developed a brain biofeedback system that rewards the person’s brain when
it emits more happiness-related behavior (“prefrontal
gamma” waves)
by showing the person enhanced photos with pleasant music. The study won an
award from
The Association for Applied Psychophysiology and Biofeedback where the system
was demonstrated.
The training required a total of five hours over twelve sessions. Afterwards,
the researchers measured significant gains in the person’s happiness and
improvements in memory. The gain in overall happiness remained constant when
measured after four months. No plans for the commercialization of the system was
mentioned, but is anticipated.
Web source:
Simple Training Produces Long-Lasting Happiness
Louisville, KY, March 7, 2011: A
prize-winning study performed at the University of Louisville showed that a
simple
form of brain training can produce long-lasting happiness. The initial training,
which took a total of five hours over 12
sessions, resulted in a significant gain in a measure of happiness and
improvements in memory. The happiness measure
was repeated nearly four months later and the gain was exactly the same.
The study was performed by Dr. Estate (Tato) Sokhadze, Associate Professor of
Psychiatry, in collaboration with Dr.
Jonathan Cowan, the CEO of Peak Achievement Training. Dr. Sokhadze administered
the twelve training sessions and
the evaluations to a group consisting of 11 poly-drug users and controls. Dr.
Cowan developed the Peak
BrainHappiness Trainer, which was used in this study. It combines a unique form
of brainwave biofeedback, called the
Neureka! protocol, with viewing DVDs that create positive emotions. As the
trainee's Neureka! increases, the DVD's
picture gets bigger and the audio gets louder. The trainee soon learns how to
increase the output of Neureka! by
producing a subtle shift in brain functioning that also makes them feel better.
In a series of previous studies, Drs. Sokhadze and Cowan have shown that
enhanced output of the Neureka! brain rhythm is associated with positive
feelings such as happiness, love, satisfaction, joy, pleasure, gratitude,
mindfulness, and anticipation of something good.
The Association for Applied Psychophysiology and Biofeedback awarded a Citation
for this paper, which will be
presented at their Annual Meeting at the Astor Crowne Plaza Hotel in New
Orleans. Dr. Cowan will be presenting the
paper, titled "Prefrontal Gamma Feedback Improves Emotional State and Cognitive
Function", at the end of the 1:00 PM
to 2:30 PM paper session on Saturday, March 12.
Dr. Cowan has hypothesized that there is a functional system in the brain he
named Neureka!, that is responsible for
processing new learning and then rewarding the learner by making them feel good,
so that they continue their efforts to
learn. These positive feelings and the improvements in memory are probably due
to the release of the brain chemical,
dopamine, in the Prefrontal Pleasure Center, located behind the middle of the
forehead, in coordination with enhancement
of a specific 40 Hertz brain rhythm. The Peak BrainHappiness Trainer clarifies
the 40 Hertz brain rhythm by using the
Neureka! protocol and displays this to the trainee.
Dr. Cowan commented "This outcome is particularly promising because it suggests
that people can be trained to be
happy in a short time, creating a lasting impact.
We also know that happy people generally are healthier and live longer.
In fact, one of the major researchers in positive psychology, Dr. Ed Diener,
just published a research review (co-
authored by Micaela Chan) that reached this conclusion on the basis of 160
studies. With appropriate funding,
we
should be able to design a program that improves happiness and memory, enhances
health, and decreases health care
costs."
###
If you'd like more information about this topic, or to schedule an interview
with JD Starman or Dr. Jon Cowan. Please contact JD Starman at 217-414-6541or
jstarman@peakachievement.com
See
http://www.peakachievement.com/products.htm
========================
China’s State Administration for Religious Affairs issued a new law, forbidding
Tibetans to reincarnate without formal government permission. In what the
government called "an important move to institutionalize management of
reincarnation," they spelled out specific procedures and circumstances that will
govern reincarnation. In actuality, the move is meant to give the Chinese
government the say in choosing the next Dalai Lama. Although the Buddhist monks
will appoint the successor by interviewing children about their memories of past
lives, the government will be able to proclaim the next “official” Dalai Lama,
someone whose reincarnation meets with government approval.
In one of history's more absurd acts of totalitarianism, China has banned
Buddhist monks in Tibet from reincarnating without government permission.
According to a statement issued by the State Administration for Religious
Affairs, the law, which goes into effect next month and strictly stipulates the
procedures by which one is to reincarnate, is "an important move to
institutionalize management of reincarnation." But beyond the irony lies China's
true motive: to cut off the influence of the Dalai Lama, Tibet's exiled
spiritual and political leader, and to quell the region's Buddhist religious
establishment more than 50 years after China invaded the small Himalayan
country. By barring any Buddhist monk living outside China from seeking
reincarnation, the law effectively gives Chinese authorities the power to choose
the next Dalai Lama, whose soul, by tradition, is reborn as a new human to
continue the work of relieving suffering.
At 72, the Dalai Lama, who has lived in India since 1959, is beginning to plan
his succession, saying that he refuses to be reborn in Tibet so long as it's
under Chinese control. Assuming he's able to master the feat of controlling his
rebirth, as Dalai Lamas supposedly have for the last 600 years, the situation is
shaping up in which there could be two Dalai Lamas: one picked by the Chinese
government, the other by Buddhist monks. "It will be a very hot issue," says
Paul Harrison, a Buddhism scholar at Stanford. "The Dalai Lama has been the
prime symbol of unity and national identity in Tibet, and so it's quite likely
the battle for his incarnation will be a lot more important than the others."
Web link:
http://www.huffingtonpost.com/2007/08/22/china-bans-reincarnation-_n_61444.html?ref=fb&src=sp
=======================
Pole Shift Resulted from Japan Earthquake
The shifting of the earth’s magnetic poles is one of the themes associated with
projections of earth changes and other possible planetary calamities. The recent
earthquake in Japan, registering a record 9.0, caused the earth’s poles to shift
about 6 to seven inches, according to a report by NASA. It was enough of a
change to require airplane pilots to compensate for the new heading of their
destination airport.
The shift in the earth’s poles, according to NASA, also caused that day to be
shorter, by about 2 microseconds. Researchers at NASA also pointed out, for the
purposes of comparison, that during a normal year, the earth’s axis shifts here
and there about 3 and a half feet, a much greater distance than that caused by
the Japan earthquake. Also noted that during the year, the length of a day
increases and decreases by about a millisecond, which is more than five hundred
times the amount of shortening caused by the earthquake. Conclusion: recent
events on our planet amount to just another day on Mother Earth.
Web Source:
The 9.0 magnitude earthquake that ravaged Japan also shortened Earth's day by
just over one-millionth of a second (1.8 microseconds to be exact), according to
NASA. It also shifted the Earth's axis by about 6.5 inches.
By changing the distribution of the planet's mass, the quake likely caused the
Earth to spin a tiny bit faster, says research scientist
Richard Gross of NASA's
Jet Propulsion Laboratory in Pasadena, Calif., thus shortening the time the
planet takes to rotate each day.
The quake also shifted the position of the Earth's "figure" axis (which is
different from the planet's north-south axis). This shift in Earth's figure axis
will cause Earth to wobble a bit differently as it rotates, but it won't cause a
shift of the Earth's axis in space -- only external forces such as the
gravitational attraction of the sun, moon and planets could do that.
Gross says a change in Earth's mass and rotation isn't cause for alarm, and
isn't unusual:
"Earth's rotation changes all the time as a result of not only earthquakes, but
also the much larger effects of changes in atmospheric winds and oceanic
currents," he says. "Over the course of a year, the length of the day increases
and decreases by about a millisecond, or about 550 times larger than the change
caused by the Japanese earthquake.
"The position of Earth's figure axis also changes all the time, by about 3.3
feet over the course of a year, or about six times more than the change that
should have been caused by the Japan quake."
Gross said the changes in Earth's rotation and figure axis caused by earthquakes
should not have any impacts on our daily lives. "These changes in Earth's
rotation are perfectly natural and happen all the time," he says. "People
shouldn't worry about them."
=======================
Fiber Can Prolong Life
The average American doesn’t get enough fiber in the diet, and now research
indicates that such a shortage can cut the life span as well as create health
problems along the way. A new study by the National Institutes of Health found
that the difference in mortality between folks with low fiber and folks with
high fiber diets is quite significant—a high fiber diet cuts the death rate by
twenty five per cent! This same study found that a high fiber diet was
associated with significantly reduced chances of cardiovascular disease, cancer,
and respiratory ailments.
Web source:
Fiber, the edible part of plants that resist digestion, has
been suggested to lower risks of heart disease, diabetes and obesity, and
certain cancers, as the substance reduces blood cholesterol levels, improves
blood glucose levels, lowers blood pressure, promotes weight loss, reduces
inflammation and binds to potential cancer-causing agents to promote excretion.
Yikyung Park, from the National Cancer Institute (Maryland, USA), and colleagues
analyzed data from 219,123 men and 168,999 women enrolled in the National
Institutes of Health-AARP Diet and Health Study. Participants completed a food
frequency questionnaire at the beginning of the study in 1995 and 1996, and
causes of death were determined by linking study records to national registries.
Participants' fiber intake ranged from 13 to 29 grams per day in men and from 11
to 26 grams per day in women. Over an average of nine years of follow-up, 20,126
men and 11,330 women died. Fiber intake was associated with a significantly
decreased risk of total death in both men and women—the one-fifth of men and
women consuming the most fiber (29.4 grams per day for men and 25.8 grams for
women) were 22% less likely to die than those consuming the least (12.6 grams
per day for men and 10.8 grams for women). As well, the risk of cardiovascular,
infectious and respiratory diseases was reduced by 24% to 56% in men and 34% to
59% in women with high fiber intakes. Dietary fiber from grains, but not from
other sources such as fruits, was associated with reduced risks of total,
cardiovascular, cancer and respiratory disease deaths in men and women.
Reporting that: “Dietary fiber may reduce the risk of death from cardiovascular,
infectious, and respiratory diseases,” the researchers urge that: “Making
fiber-rich food choices more often may provide significant health benefits.”
Web link:
http://www.worldhealth.net/news/daily-fiber-boosts-longevity/
====================
Romania Haunts Witches with New Laws
It’s a hard time for witches and seers these days in Romania. First the
government officially recognized witches, seers and psychics as legitimate
professions. That recognition also required that the government institute taxes
on the income of this trade group. That was bad enough, leading some witches,
according to an Associated Press report, to dump
poisonous mandrake into the Danube in an attempt to put a hex on the government
officials. The new law also requires witches to have a permit, to provide their
customers with receipts and bar them from practicing near schools and churches,
with the threat of fines or jail time if their predictions don’t pan out.
Web Source:
Romania may get even tougher on witches
By ALISON MUTLER
BUCHAREST, Romania (AP) - There's more bad news in the cards for Romania's
beleaguered witches.
A month after Romanian authorities began taxing them for their trade, the
country's soothsayers and fortune tellers are cursing a new bill that threatens
fines or even prison if their predictions don't come true.
Superstition is a serious matter in the land of Dracula, and officials have
turned to witches to help the recession-hit country collect more money and crack
down on tax evasion.
Witches argue they shouldn't be blamed for the failure of their tools.
"They can't condemn witches, they should condemn the cards," Queen Witch Bratara
Buzea told The Associated Press by telephone.
Critics say the proposal is a ruse to deflect public attention from the
country's many problems. In 2009, Romania needed a euro20 billion ($27.31
billion) International Monetary Fund-led bailout loan to pay salaries and
pensions when its economy contracted more than 7 percent. Last year, the economy
shrank again. However, this year a slight recovery of 1.5 percent growth is
forecast.
European Union and Romanian officials say local authorities are hampered by
political bickering and bureaucracy. The centrist government is unpopular, the
opposition is weak, the press thrives on conspiracy and personal attacks, and EU
officials say the justice system needs to be reformed. Romanians are jaded and
mistrustful.
"The government doesn't have real solutions, so it invents problems," said
Stelian Tanase, a well-known Romanian political commentator. "This is the
government that this country deserves."
In January, the government changed labor laws to officially recognize the
centuries-old practice of witchcraft as a taxable profession, prompting angry
witches to dump poisonous mandrake into the Danube in an attempt to put a hex on
them.
The latest bill was passed in the Senate last week, but must still be approved
by a financial and labor committee and by the Chamber of Deputies, the other
house of Romania's parliament.
Bratara called the proposed bill overblown. "I will fight until my last breath
for this not to be passed," she said.
Sometimes, she argued, people don't provide their real identities, dates of
birth or other personal details, which could skew a seer's predictions. "What
about when the client gives false details about themselves? We can't be blamed
for that."
The new bill would also require witches to have a permit, to provide their
customers with receipts and bar them from practicing near schools and churches.
Tanase has a solution.
"Maybe they should put a spell on (Prime Minister Emil) Boc and (President
Traian) Basescu, so they can find the solutions," he said.
Web Link:
http://apnews.myway.com/article/20110208/D9L8LR4G1.html
==================================
Men Respond to Scent of Fertile Woman
Aroma has the most powerful effect on a person of all sensory modalities,
according to Edgar Cayce. Research reported here over the years has provided
some amazing corroborative evidence for the (usually subliminal) effect of odor.
The latest study comes from the field of evolutionary psychology and its study
of “relationship management,” which asks questions about how the sexes choose
each other for mating and how do they maintain that relationship. In this study,
conducted at Florida State University, men were left in a room with a woman who,
unknown to the men, was either in the fertile or infertile stage of her cycle.
Later, researchers asked the man to rate the woman for her attractiveness.
Past research has shown that when a woman is in the fertile stage of her cycle,
men will rate her as more attractive than they will at other stages of her
cycle. In this new study, that same effect was observed. However, the
researchers had invited two types of men into this study. One type was already
involved in a committed romantic relationship, while the other type was not. The
results indicated that only the men not already in a relationship rated the
fertile woman as more attractive. The men already in a relationship rated the
fertile woman as less attractive. The researchers interpreted this result in an
evolutionary context, suggesting that the negative reaction to the scent of a
fertile woman supported the men’s ability to maintain their current relationship
by making them feel less attracted to someone who might pose a threatening
invitation to mate.
Web Source:
|
Publication Date: 21 February 2011 |
|
Author: JOHN TIERNEY |
|
Source: The New York Times |
|
Link: http://www.nytimes.com/2011/02/22/science/22tier.html |
|
The 21-year-old woman was carefully trained not to flirt with anyone who
came into the laboratory over the course of several months. She kept eye
contact and conversation to a minimum. She never used makeup or perfume,
kept her hair in a simple ponytail, and always wore jeans and a plain
T-shirt. |
Web Link: Courtesty of schwartzreport.net
=================
Less Education Means Higher Blood Pressure
It’s been known for some time that health is related to socio-economic status,
which in turn is related to educational attainment. Folks with higher levels of
education have overall better health. Recent research has pinned down one factor
that could be the cause of this relationship—blood pressure.
Average blood pressure among adults is inversely related to level of education
attained, according to a recent study published in the
journal BMC
Public Health. Those with lower levels of education have higher blood
pressure, which is related to several types of health concerns. The researchers
noted, "Low educational attainment has been
demonstrated to predispose individuals to high strain jobs, characterised by
high levels of demand and low levels of control, which have been associated with
elevated blood pressure."
Web Source:
Education
Reduces Blood Pressure
Publication Date: 27 February 2011
Author:
Source: BBC News (U.K.)
Link: http://www.bbc.co.uk/news/health-12577353
Despite exam stress, a long stint in education is good for people's blood
pressure, according to researchers in the US.
High blood pressure, or hypertension, is linked to heart attacks, strokes and
kidney failure.
The study, published in the journal BMC Public Health, shows the link is
stronger in women than in men.
The British Heart Foundation said the findings supported the link between
deprivation and heart disease risk.
Higher levels of education have been linked to lower levels of heart disease.
The researchers suggest that blood pressure could be the reason why.
The study looked at 30 years of data from 3,890 people who were being followed
as part of the Framingham Offspring Study.
People were divided into three groups, low education (12 years or less), middle
education (13 to 16 years) and high education (17 years or more).
The average systolic blood pressure for the 30 year period was then calculated.
Women with low education had a blood pressure 3.26 mmHg higher than those with a
high level of education. In men the difference was 2.26 mmHg.
Other factors, such as smoking, taking blood pressure medication and drinking,
were taken into consideration and the effect on blood pressure remained,
although at a much lower level.
Writing in the journal, the researchers says: "Low educational attainment has
been demonstrated to predispose individuals to high strain jobs, characterised
by high levels of demand and low levels of control, which have been associated
with elevated blood pressure."
Professor Eric Loucks, who conducted the study at Brown University, said: "Women
with less education are more likely to be experiencing depression, they are more
likely to be single parents, more likely to be living in impoverished areas and
more likely to be living below the poverty line."
Natasha Stewart, senior cardiac nurse at the British Heart Foundation, said:
"These findings support existing evidence about the link between socio-economic
deprivation and heart disease risk.
"However, the study only showed up a small blood pressure drop among women and
an insignificant decrease among men.
"Action is needed across all parts of society to give children the best possible
start in life and reduce health inequalities."
Web Link: Courtesty of schwartzreport.net
=======================
Optimism Helps Heal the Heart
Optimism is a heart healthy attitude, past research reported here has shown. New
research shows also that optimism helps heal a heart confronted with coronary
heart disease. The study, Conducted at Duke
University Medical Center, followed almost three
thousand heart patients for fifteen years. At the beginning of the study,
researchers measured a patient’s level of optimism by asking for true/false
responses to statements such as “I expect my lifestyle will suffer; I can still
live a long, healthy life; I doubt that I'll ever fully recover.”
At the end of the study, the histories of these patients were compared and
correlated with their initial attitude about their heart and future prospects.
The results,
published in the
Archives of Internal Medicine,
indicated that those with the most optimistic attitudes experienced a more
successful recovery and lived longer than those with less optimism.
Web Source:
|
Publication Date: 28 February 2011 |
|
Author: MARY BROPHY MARCUS |
|
Source: USA TODAY |
|
Link: http://www.usatoday.com/yourlife/health/medical/heartdisease/2011-03-01-heartattitude01_ST_N.htm |
|
Heart patients with an optimistic outlook are more likely to be
healthier down the road and survive longer than those with less rosy
views, new research suggests. |
|
|
===========================
Sixth Mass Extinction May Be Upon Us
Scientists have determined that there have been five mass extinctions in the
history of our planet. They were created by natural causes and wiped out as much
as seventy five per cent of life each time. According to a study recently
published in the journal Nature, we
may be in the midst of a sixth mass extinction
This one, according to the study, is man-made. Habitation loss, over-hunting,
over-fishing, the spread of germs and viruses and introduced species, and by
climate change caused by fossil-fuel greenhouse gases are the sources of this
slow scourge. Except for the mass extinction caused by an comet colliding with
earth which killed quickly, the other four extinctions have occurred over
hundreds of thousands to millions of years, caused by global warming or cooling.
This sixth extinction, which began perhaps two hundred years ago, is happening
rapidly, completing itself in from five hundred to two thousand years.
Web Source:
|
Publication Date: Thursday, March 3rd, 2011 -- 4:08 pm |
|
Author: |
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Source: Agence France-Presse (France) |
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Link: http://www.rawstory.com/rs/2011/03/03/worlds-sixth-mass-extinction-may-be-underway-study/ |
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Another alarm. But is anyone listening? |
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PARIS -- Mankind may have unleashed the sixth known mass extinction in
Earth's history, according to a paper released on Wednesday by the
science journal Nature. |
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Exercise Can Inhibit Aging
It’s possible that exercise can keep you young. We know its good for our health
and mental outlook. It may be good for more than that, according to some new
research conducted at McMaster University in
Hamilton, Ontario and published in
The Proceedings of the National Academy of Sciences.
It may slow aging.
In their study, the researchers employed mice who had a genetic defect that
caused the mitochondria (living processes within a cell that combine oxygen and
nutrients to create energy) to deteriorate quickly, leading to aging and an
early death. One group of these mice lived a normal lab life, while the other
group of mice enjoyed a regimen of intense exercise on an activity wheel. Three
times a week for 45 minutes, these mice would run the wheel at a speed
equivalent to a human running six miles in an hour. The mice that didn’t
exercise began to show aging effects as early as three months. By one year, all
these mice were dead. However, all the exercising mice were still alive, with
very few gray hairs. Fitness expert Jack LaLanne had nothing on these mice! More
research is planned to determine if such intense exercise is needed for this
effect and to determine the exact mechanism of its operation.
Web source:
Can Exercise Keep You Young?
Publication Date: March 2, 2011, 12:02 am
Author: GRETCHEN REYNOLDS
Source: The New York Times
Link: http://well.blogs.nytimes.com/2011/03/02/can-exercise-keep-you-young/?hp
It gets clearer and clearer what it takes to maintain good health.
We all know that physical activity is beneficial in countless ways, but even so,
Dr. Mark Tarnopolsky, a professor of pediatrics at McMaster University in
Hamilton, Ontario, was startled to discover that exercise kept a strain of mice
from becoming gray prematurely.
Getty Images
But shiny fur was the least of its benefits. Indeed, in heartening new research
published last week in The Proceedings of the National Academy of Sciences,
exercise reduced or eliminated almost every detrimental effect of aging in mice
that had been genetically programmed to grow old at an accelerated pace.
In the experiment, Dr. Tarnopolsky and his colleagues used lab rodents that
carry a genetic mutation affecting how well their bodies repair malfunctioning
mitochondria, which are tiny organelles within cells. Mitochondria combine
oxygen and nutrients to create fuel for the cells - they are microscopic power
generators.
Mitochrondria have their own DNA, distinct from the cell’s own genetic material,
and they multiply on their own. But in the process, mitochondria can accumulate
small genetic mutations, which under normal circumstances are corrected by
specialized repair systems within the cell. Over time, as we age, the number of
mutations begins to outstrip the system’s ability to make repairs, and
mitochondria start malfunctioning and dying.
Many scientists consider the loss of healthy mitochondria to be an important
underlying cause of aging in mammals. As resident mitochondria falter, the cells
they fuel wither or die. Muscles shrink, brain volume drops, hair falls out or
loses its pigmentation, and soon enough we are, in appearance and beneath the
surface, old.
The mice that Dr. Tarnopolsky and his colleagues used lacked the primary
mitochondrial repair mechanism, so they developed malfunctioning mitochondria
early in their lives, as early as 3 months of age, the human equivalent of age
20. By the time they reached 8 months, or their early 60s in human terms, the
animals were extremely frail and decrepit, with spindly muscles, shrunken
brains, enlarged hearts, shriveled gonads and patchy, graying fur. Listless,
they barely moved around their cages. All were dead before reaching a year of
age.
Except the mice that exercised.
Half of the mice were allowed to run on a wheel for 45 minutes three times a
week, beginning at 3 months. These rodent runners were required to maintain a
fairly brisk pace, Dr. Tarnopolsky said: 'It was about like a person running a
50- or 55-minute 10K.” (A 10K race is 6.2 miles.) The mice continued this
regimen for five months.
At 8 months, when their sedentary lab mates were bald, frail and dying, the
running rats remained youthful. They had full pelts of dark fur, no
salt-and-pepper shadings. They also had maintained almost all of their muscle
mass and brain volume. Their gonads were normal, as were their hearts. They
could balance on narrow rods, the showoffs.
But perhaps most remarkable, although they still harbored the mutation that
should have affected mitochondrial repair, they had more mitochondria over all
and far fewer with mutations than the sedentary mice had. At 1 year, none of the
exercising mice had died of natural causes. (Some were sacrificed to compare
their cellular health to that of the unexercised mice, all of whom were, by that
age, dead.)
The researchers were surprised by the magnitude of the impact that exercise had
on the animals’ aging process, Dr. Tarnopolsky said. He and his colleagues had
expected to find that exercise would affect mitochondrial health in muscles,
including the heart, since past research had shown a connection. They had not
expected that it would affect every tissue and bodily system studied.
Other studies, including a number from Dr. Tarnopolsky’s own lab, have also
found that exercise affects the course of aging, but none has shown such a
comprehensive effect. And precisely how exercise alters the aging process
remains unknown. In this experiment, running resulted in an upsurge in the
rodents’ production of a protein known as PGC-1alpha, which regulates genes
involved in metabolism and energy creation, including mitochondrial function.
Exercise also sparked the repair of malfunctioning mitochondria through a
mechanism outside the known repair pathway; in these mutant mice, that pathway
didn’t exist, but their mitochondria were nonetheless being repaired.
Dr. Tarnopolsky is currently overseeing a number of experiments that he expects
will help to elucidate the specific physiological mechanisms. But for now, he
said, the lesson of his experiment and dozens like it is unambiguous. 'Exercise
alters the course of aging,” he said.
Although in this experiment, the activity was aerobic and strenuous, Dr.
Tarnopolsky is not convinced that either is absolutely necessary for benefits.
Studies of older humans have shown that weightlifting can improve mitochondrial
health, he said, as can moderate endurance exercise. Although there is probably
a threshold amount of exercise that is necessary to affect physiological aging,
Dr. Tarnopolsky said, 'anything is better than nothing.” If you haven’t been
active in the past, he continued, start walking five minutes a day, then begin
to increase your activity level.
The potential benefits have attractions even for the young. While Dr.
Tarnopolsky, a lifelong athlete, noted with satisfaction that active, aged mice
kept their hair, his younger graduate students were far more interested in the
animals’ robust gonads. Their testicles and ovaries hadn’t shrunk, unlike those
of sedentary elderly mice.
Dr. Tarnopolsky’s students were impressed. 'I think they all exercise now,” he
said.
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Naps Make You Smarter
We know Thomas Edison took naps to help his work and we’ve since learned that
naps improve our health, our mental outlook, and our memory. A recent study
published in Current Biology has shed
light on what happens in naps that create these effects.
In this study, researchers at the University of California, Berkeley, recruited
volunteers to come to the lab to learn a memorization task, connecting faces
with names. Afterwards, half the volunteers got a ninety minute nap that
afternoon, while the rest were assigned other laboratory activities for the
afternoon. Early that evening, the researchers re-tested everyone’s memory for
the first task. Those who napped did much better at remembering what they had
learned earlier that day. The researchers then gave the volunteers a second
memorization task. Those who had not napped did about twenty per cent worse than
they had done earlier in the day. Those who napped improved their performance
relative to their earlier work.
The researchers concluded from this work that napping helps both to help retain
what has been learned, and helps with learning afterwards. When the researchers
studied the EEG recordings of each volunteer’s nap time, they found that there
were “sleep spindles” occurring in non-dream sleep. They speculate that these
spindles reflect the brain moving information from short term memory to long
term storage. This movement into long term storage would explain why the nappers
remembered their learning better than the non-nappers. The reseaerchers also
speculate that when information is moved from short-term to long-term memory, it
relieves a burden on short-term memory, clearing it for better work, as
evidenced in the nappers outperforming their counterparts on a new learning
exercise. The researchers concluded that napping helps both after learning and
before learning.
Web Source:
Why Naps Make You Smarter
Publication Date: 08 March 2011 | 12:06 PM ET
Author: STEPHANIE PAPPAS
Source: LiveScience
Link: http://www.livescience.com/13125-sleep-naps-boost-memory.html
A good night's sleep is crucial to storing knowledge learned earlier in the
day - that much was known. Now, a new study finds that getting shut-eye before
you learn is important, too.
Volunteers who took a 100-minute nap before launching into an evening
memorization task scored an average of 20 percentage points higher on the memory
test compared with people who did the memorization without snoozing first.
"It really seems to be the first evidence that we're aware of that indicates a
proactive benefit of sleep1," study co-author Matthew Walker, a professor of
psychology and neuroscience at the University of California, Berkeley, told
LiveScience.
"It's not simply enough to sleep after learning," Walker said. "It turns out you
also need to sleep before learning."
Refreshing naps
Earlier research has found that dreams boost learning2, with one study
suggesting a 90-minute nap3 may help lock in long-term memories. But Walker's
research, published this week in the journal Current Biology, finds that another
phase of sleep, called nonrapid eye movement (NREM) is most closely linked to
the learning boost provided by a nap.
Walker and his colleagues recruited 44 volunteers - 27 women and 17 men - to
come to the sleep lab at noon. First, the volunteers were given a task in which
they had to memorize 100 names and faces. Then they were tested for how well
they recalled the face-name matches.
Next, the researchers tucked half of the volunteers in for a nap between 2 p.m.
and 3:40 p.m. The scientists measured the napping volunteers' brain waves as
they slept. The other group of participants stayed awake and did daily
activities as they normally would. At 6 p.m., both groups memorized another set
of 100 faces and names and were tested on their memory. (The experiment was set
up so nappers had more than an hour to shake off any remaining fuzziness before
the test, Walker said.)
The first major finding, Walker said, was that learning ability degrades as the
day wears on. Volunteers who didn't nap did about 12 percent worse on the
evening test than they did on the morning test. (Walker presented preliminary
findings of this effect4 at a conference in February 2010.) But shut-eye not
only reversed those effects, it provided a memory boost: Napping test-takers did
about 10 percent better on the evening test than they did on the morning test.
In all, the difference in scores between nappers and non-nappers was about 20
percent, Walker said.
Secondly, the brain-wave monitoring turned up a likely culprit for the memory
upgrade: a short, synchronized burst of electrical activity called a sleep
spindle. These sleep spindles last about one second and can occur 1,000 times
per night during NREM sleep. People who had more of these spindles, especially
people who had more over a frontal area of the brain called the prefrontal
cortex, showed the most refreshment in learning capacity after their nap, Walker
said.
Uploading memories
Walker and his colleagues suspect that the sleep spindles are working to
transfer information from the hippocampus, a small area deep in your brain where
memories are made, to the prefrontal cortex, which serves as long-term storage.
That frees up the hippocampus to make new memories, Walker said.
"It's almost like clearing out your informational inbox of your e-mail so you
can start to receive new e-mails the next day," he said.
NREM sleep and sleep spindle frequency change throughout a person's life span,
Walker said. Older people, for example, have a decline in sleep spindles,
suggesting that sleep disruption could be one reason for the memory loss
prevalent in old age5. The volunteers in the current study were young, but the
researchers hope to investigate the effect of sleep spindles on learning in
older adults, Walker said.
The research also draws attention to the importance of sleep, Walker said. Sleep
spindles happen more frequently later in the night, precisely the time people
cut short when they rise early for work and school, Walker said.
"Somewhere between infancy and early adulthood, we abandon the notion that sleep
is useful," Walker said. That needs to change, he said: "Sleep is doing
something very active for things like learning and memory. I think for us as a
society to stop thinking of sleep as a luxury rather than a biological necessity
is going to be wise."