Check out this article discussing prions and the fact that they do mutate and evolve like viruses. Prions are degenerate proteins responsible for diseases such as “mad cow disease”, technically termed bovine spongiform encephalopathy (BSE), and Creutzfeldt Jakob disease (CJD).
In the classic sense, prions, which are misfolded versions of the brain protein PrP, cannot mutate because they do not contain DNA or RNA. They can, however, give rise to variants with different properties, possibly due to differences in the folding, or shape, of the proteins. In the study, published December 31 in Science Express, researchers estimated the rate at which prion mutants can appear in cultured human nerve cells. In addition, the study suggests that once variants appear, they persist at low levels, giving rise to a heterogeneous prion population.
Check out this article about how cell phone radiation may help protect against alzheimer’s disease.
The authors say previous studies have linked a possible increased risk of Alzheimer’s with “low-frequency” electro-magnetic exposure like the energy waves generated by power and telephone lines.
They say mobile phones emit “high frequency” electro-magnetic waves that are very different because they can have beneficial effects on brain function, such as increasing brain cell activity.
So the questions is would you rather die of brain cancer from prolonged cell phone usage, or live a demented final years of your life having alzheimer’s?
Found this article on wired.com titled Human Genome Is Part Bornavirus.
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“Our whole notion of ourselves as a species is slightly misconceived,” says Robert Gifford, a paleovirologist at the Aaron Diamond AIDS Research Center, affiliated with Rockefeller University in New York City. Human DNA includes genetic contributions from bacteria and other organisms, and humans have even come to rely on some of these genes for basic functions like fighting infections.
In the new study, Japanese researchers found copies of the bornavirus N (for nucleoprotein) gene inserted in at least four separate locations in the human genome. Searches of other mammalian genomes also showed that the gene has hitched rides in a wide variety of species for millions of years.
“Clearly they provide a fossil record of bornavirus that was previously only available for retroviruses,” says John Coffin, a virologist at Tufts University School of Medicine in Boston who coauthored the study. “It tells us that virus evolution doesn’t proceed the way many people have viewed it.”
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The running theory goes, your hard drive might be chugging it’s last death, clicking away its final moments, but there’s a chance you can save your data by freezing whatever parts are loosening up or losing contact together. You see, your hard drive contains a lot of moving parts. After spinning for so long, it’s only natural things can vibrate and get loose. Metal also expands as it gets hotter. Freezing the metal might just force everything back together again.
It sounds so ridiculous, but there is plenty of anecdotal evidence to prove that it can work, provided it’s a hardware problem and not a software problem.
A friend sent me this article titled Women Who Don’t Live Alone Add More Weight. Bottom line is that if your a women in a relationship, chances are you have gained at least 4lbs. If you have a baby, the number goes up..
After adjusting for other variables, the 10-year weight gain for an average 140-pound woman was 20 pounds if she had a baby and a partner, 15 if she had a partner but no baby, and only 11 pounds if she was childless with no partner. The number of women with a baby but no partner was too small to draw statistically significant conclusions.
The internet is overflowing with information and people trying to publish themselves and interact with their friends. Decided to do a little searching, and i stumbled on a World Map of Social Networking.
Notables would be Facebook for the US and many other countries, Orkut for Brazil, and QQ for China.
While I’m not normally a big fan of the economist, I found this article about Women in the workforce:
Female power to be a pretty interesting read.
THE economic empowerment of women across the rich world is one of the most remarkable revolutions of the past 50 years. It is remarkable because of the extent of the change: millions of people who were once dependent on men have taken control of their own economic fates. It is remarkable also because it has produced so little friction: a change that affects the most intimate aspects of people’s identities has been widely welcomed by men as well as women. Dramatic social change seldom takes such a benign form.
The article talks about a good deal about the progress women have made in the workforce. However, there are some limitation caused by the biological differences between men and women:
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This no doubt owes something to prejudice. But the biggest reason why women remain frustrated is more profound: many women are forced to choose between motherhood and careers. Childless women in corporate America earn almost as much as men. Mothers with partners earn less and single mothers much less. The cost of motherhood is particularly steep for fast-track women. Traditionally “female” jobs such as teaching mix well with motherhood because wages do not rise much with experience and hours are relatively light. But at successful firms wages rise steeply and schedules are demanding. Future bosses are expected to have worked in several departments and countries. Professional-services firms have an up-or-out system which rewards the most dedicated with lucrative partnerships. The reason for the income gap may thus be the opposite of prejudice. It is that women are judged by exactly the same standards as men.
The article focused on the rights and power of women in the workforce, and also the life decision of career or family, but I think the article neglects the changing attitude regarding kids in industrialized societies. Having a kid puts your life on hold. This is more true for women, since we place the duty of childrearing on women. So regardless of your goals for your career, if your life is about you, what you can do, and the adventures you can find, its a hard sell to put your life on hold to nurse the next generation.
Check out this article about how stress levels in a mother can cause stress-induced sex selection in children.
A recently published study, however, suggests this ain’t necessarily so. According to Ralph Catalano of the University of California, Berkeley, and his colleagues, writing in the American Journal of Human Biology, stress-induced sex selection can take place long after conception and implantation.
Check out this article on games for thinkers. Top three on the list are:
Chesss
Scrabble
Monopoly
Of the top 3, the top two are really easy to play on the go on your mobile phone. One of my favorite games (not in the top 10), is Go. Go is an intense game. Its simplistic enough for a four year old to learn, but complex enough that there is still not any robust Go AIs that can go head to head with the masters of the game.
This article on USA Today talks about how routing cancer screenings do more harm then good. Sometimes its not that simple to know what is going on with the body.
There’s growing evidence that cancer screenings aren’t always helpful — and can sometimes be harmful, say Lisa Schwartz and Steve Woloshin of the Veterans Affairs Outcomes Group in White River Junction, Vt.
•Last year, the task force said men over age 75 shouldn’t be screened for prostate cancer, noting that men this age are more likely to die of something else before a prostate tumor could harm them. In March, two long-running and highly anticipated studies found that prostate cancer screening saves few, if any, lives but may hurt countless men by leading them to undergo therapies that can cause impotence, incontinence and even death.
Check out this short article about spicing up your life by moving out of your comfort zone. Just a reminder to not simply go through life on autopilot….
If you want a more interesting life then you have to take some risks. If you want to be more adventurous in your thinking then you should be more adventurous in your activities. Deliberately push yourself out of your routine. Try things that you do not normally try. Do things that you have never done before. Do things that scare you.
Here are some ideas for pushing yourself out of your personal rut.
* Take salsa dancing lessons
* Try a new sport.
* Drive a different route to work every day for a month.
* Learn to knit.
* Perform in a karaoke bar.
* Learn a foreign language.
* Talk to somebody new every day. Listen to them carefully.
Check out this article about human emit visible light.
Past research has shown that the body emits visible light, 1,000 times less intense than the levels to which our naked eyes are sensitive. In fact, virtually all living creatures emit very weak light, which is thought to be a byproduct of biochemical reactions involving free radicals.
and also:
The researchers found the body glow rose and fell over the day, with its lowest point at 10 a.m. and its peak at 4 p.m., dropping gradually after that. These findings suggest there is light emission linked to our body clocks, most likely due to how our metabolic rhythms fluctuate over the course of the day.
Check out this article talking about how napping is good for your health.
Research on napping is constantly showing positive effects. The results suggest that napping can make you more alert, reduce stress and improve cognitive functioning compared to working all day without rest. A mid-afternoon sleep means that productivity can last long into the night. Researchers at NASA showed that a 30-minute power nap increased cognitive functioning by 40%. The volunteers on the tests found that their memory improved as well as experiencing an increase in concentration. Those who didn’t nap would score lower on IQ test than those that did (after a day of work).
There is also a kinda cool concept midway through called caffeine naps.
Check out this article on breast feeding and good academics.
“The results of our study suggest that the cognitive and health benefits of breastfeeding may lead to important long-run educational benefits for children,” Sabia, a professor of public policy who focuses on health economics, said in a statement.
This article talks about how drinking shrinks the brain.
They decrease in size by about 2 percent per decade, and the brains of drinkers may shrink more quickly, according to a study published Monday in the Archives of Neurology, a publication of the American Medical Association. Those who drank most saw the most shrinkage. Women’s brains suffered more than men’s, perhaps because women tend to be smaller than men and may metabolize alcohol differently.
However, the study was not able to show what effect this had on cognitive abilitity.
Found a couple articles about aging and longevity.
First, this article proposes that aging is affected by brake and accelerator genes.
It suggests instead that a combination of factors is at play—that in addition to rusting, there are also certain genes that may carry instructions to start the aging process.
Also, this article talks about how polygamy may extend the lives of men.
If female survival is the main explanation for male longevity, then monogamous and polygamous men would live for about the same length of time. Instead, it seems that fathering more kids with more wives leads to increased male longevity. Men, then, live long because they’re fertile well into their grey years.
Finally, this article talks about how a more active lifestyle can increase your lifespan.
“A sedentary lifestyle increases the propensity to aging-related disease and premature death,” researchers at King’s College London report today in the journal Archives of Internal Medicine. “Inactivity may diminish life expectancy not only by predisposing to aging-related diseases but also because it may influence the aging process itself.”
Their findings: the telomeres of subjects who exercised the most (an average of 199 minutes weekly) were longer than those of volunteers who worked out the least (a mere 16 minutes or less a week). The discrepancy was enough, researchers wrote, to suggest that the exercise mavens were on average as much as a decade biologically younger than the slackers.
The scientists speculate that stress, inflammation and oxidative stress (cell damage caused by oxygen exposure) may be responsible for shortened telomeres in physically inactive people. Exercise is among the factors found to help alleviate stress. Previous research has linked regular workouts to lower rates of cardiovascular disease, type 2 diabetes, cancer, high blood pressure, obesity and osteoporosis.
This article talks about how relaxation techniques like yoga, tai chi, etc can change the patterns of gene activity that affect how the body responds to stress.
“It’s not all in your head,” said Dr. Herbert Benson, president emeritus of the Benson-Henry Institute for Mind/Body Medicine at Massachusetts General Hospital and an associate professor of medicine at Harvard Medical School. “What we have found is that when you evoke the relaxation response, the very genes that are turned on or off by stress are turned the other way. The mind can actively turn on and turn off genes. The mind is not separated from the body.”
Check out this article discussing the health problems with prolonged use of flip flops. The gist is that, when walking with flip flops, modify their gait and walking to (1) keep their flip flop on and (2) prevent stubbing their toes.
