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Brain Vacuum Reverses Stroke Damage

A new tool developed by researchers, the Penumbra  System of Continuous Aspiration Thrombectomy,  vacuums out clots from blood vessels in the brain, and  can reverse the effects of stroke if used within in a few  hours of the incident.

The process involves threading a tiny catheter into a blood vessel up from the groin to the neck, at which point an even smaller catheter emerges and goes up into the brain.

The procedure only works on victims of massive strokes, so patients must receive a CT scan as soon as possible.

Source : http://www.ideaconnection.com/new-inventions/brain-vacuum-reverses-stroke-damage-03661.html

Filed under: New Ideas, New Invention, Research, Scientific Study,

Study on Cell Phone Link to Cancer Inconclusive

As mobile phones began to increase in popularity, concerns arose that long-term cell phone could cause brain tumors. But a major, decade-long international study which researchers hoped would settle the issue has instead proved inconclusive.

According to The Associated Press, a 10-year survey of almost 13,000 participants found most cell phone use did not increase users’ risk of developing meningioma, a common and frequently benign tumor, or glioma, a rarer but deadlier form of cancer.

The study, conducted by the World Health Organization’s International Agency for Research on Cancer, found that there were “suggestions” that using cell phones for more than 30 minutes each day could increase the risk of glioma, the APreported. But the authors added that “biases and error prevent a causal interpretation” that would directly blame cell phone radiation for the tumor.

Cell phones carry radio waves that are similar to those of microwave ovens, but there is no support for the claim that these waves have negative effects on the body.

Researchers also admitted that cell phone use has greatly increased in the decade since the study began, possibly skewing the numbers.

“The users in the study were light users compared to today,” Professor Elisabeth Cardis of the World Health Organization’s International Agency for Research on Cancer told BlackAmericaWeb.com.

Critics of the study also argue that its creators ignored several important factors, including the slow growth rate of brain tumors, which could take up to 25 years to form.

Creators of the study plan to release a comprehensive overview of available research within two years. Researchers are also looking to see if cell phones increase the development of cancerous tumors in the ear’s acoustic nerve. Another study will also examine cell phone’s affects on children, who many believe are more susceptible to radiation.

“Until stronger conclusions can be drawn one way or another it may be reasonable to reduce one’s exposure,” Cardis told BlackAmericaWeb.com. “One way to do this would be to make calls using a hands-free device.”

By AFRO Staff

Source: http://www.afro.com/sections/news/afro_briefs/story.htm?storyid=1418

Filed under: Computer Matters, Mobile Technology, Scientific Study, , ,

Pay with your life for a younger hubby

Women who marry significantly younger men, or significantly older men, have a shorter life expectancy than women who wed males about their own age, according to new findings by German scientists.

Previous studies showed that men with younger wives live longer. For years, researchers thought that this data was true for both sexes.

They assumed that an effect called “health selection” was in play – those who select younger partners are able to do so because they are healthier and thus already have a higher life expectancy.

It was also thought that a younger spouse has a positive psychological and social effect on an older partner and can be a better caretaker in old age, thereby helping to extend the partner’s life.

In a new study, however, Dr Sven Drefahl of the Max Planck Institute for Demographic Research (MPIDR) in Rostock, Germany, has shown that the same is not true for women.
The greater the age difference from the husband, the lower the wife’s life expectancy, regardless of whether the woman is younger or older than her spouse.

“These theories now have to be reconsidered,” Drefahl says. “The reasons for mortality differences due to the age gap of the spouses remain unclear.”
Using data from almost two million Danish couples, Drefahl was able to eliminate the statistical shortcomings of earlier research, and showed that the best choice for a woman is to marry a man of exactly the same age.

An older husband shortens her life, a younger one even more so. According to Drefahl’s study, published in the journal Demography, women marrying a partner seven to nine years younger increase their mortality risk by 20 percent. Hence, “health selection” can’t be true for women.

It is also doubtful that older wives benefit psychologically and socially from a younger husband. This effect only seems to work for men.

While many studies on mate selection show that women mostly prefer men the same age, most of them end up with an older husband.

“On average, men have fewer and lesser quality social contacts than those of women,” Drefahl says.

Thus, unlike the benefits of a younger wife, a younger husband wouldn’t help extend the life of his older wife by taking care of her, going for a walk with her and enjoying late life together. She already has friends for that. The older man, however, doesn’t.

The question that remains is why a younger partner would actually shorten a woman’s life. “One of the few possible explanations is that couples with younger husbands violate social norms and thus suffer from social sanctions,” Drefahl says.

Since marrying a younger husband deviates from what is regarded as usual, these couples could be considered outsiders and receive less social support. This could result in a less joyful and more stressful life, reduced health and finally, increased mortality.

While the new MPIDR study shows that marriage disadvantages most women when they are not the same age as their husband, it is not true that marriage in general is unfavorable.

Being married appears to raise the life expectancy of both men and women above those that are unmarried.



Editor: Zheng Limin |Source:  China Daily

Filed under: Belief & Tradition, Research, Scientific Study,

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