Those classified as overweight have 4 percent less brain tissue and their brains appear to have aged prematurely by 8 years. The results, based on brain scans of 94 people in their 70s, represent "severe brain degeneration," said Paul Thompson, senior author of the study and a UCLA professor of neurology.
A group of Spanish researchers reported today in Science that they may have stumbled upon a substance that could become the ultimate memory-enhancer. The group was studying a poorly-understood region of the visual cortex. They found that if they boosted production of a protein called RGS-14 in that area of the visual cortex in mice, it dramatically affected the animals' ability to remember objects they had seen.
It takes years for children to master the ins and outs of arithmetic. New research indicates that this learning process triggers a large-scale reorganization of brain processes involved in understanding written symbols for various quantities. The findings support the idea that humans' ability to match specific quantities with number symbols, a skill required for doing arithmetic, builds on a brain system that is used for estimating approximate quantities. That brain system is seen in many nonhuman animals.
A top Russian general said Friday that Poland's agreement to accept a U.S. missile interceptor base exposes the ex-communist nation to attack, possibly by nuclear weapons, the Interfax news agency reported.
The statement by Gen. Anatoly Nogovitsyn is the strongest threat that Russia has issued against the plans to put missile defense elements in former Soviet satellite nations.
"The patient had also developed the belief that, due to climate change, his own water consumption could lead within days to the deaths of millions of people through exhaustion of water supplies."
Heterosexual women, Dr Chivers and her colleagues found, were no more excited by naked men doing yoga or tossing stones into the ocean than they were by the control footage: pans of the snowcapped Himalayas.
Judge Dorsey ruled that Mr. Jordan was not denied equal protection because the city of New London applied the same standard to everyone: anyone who scored too high was rejected.
Sardinian sheepherders, Japanese grandmothers and Seventh-Day Adventists in Los Angeles don't seem to have that much in common. But within these groups there are some of the longest-lived people in the world.
Author Dan Buettner has scoured the Earth — not for the fabled Fountain of Youth — but for the key to a happy old age.
The subjects ...received doses of either the brain chemical oxytocin (OT) or a placebo via nasal spray. They chose OT because studies by other researchers had shown that OT specifically increases people’s willingness to trust others.
We determined that human umbilical cord blood mononuclear cells (UCBMC) given peripherally, by an intravenous injection, could rejuvenate the proliferative activity of the aged neural stem/progenitor cells. This increase in proliferation lasted for at least 15 days after the delivery of the UCBMC.
Translate abstract goals into a form your ancestral systems -- which traffic largely in dumb reflexes -- can understand: if-then. If you find yourself in a particular situation, then take a specific action.
By the late 1920s, America’s business and political elite had found a way to defuse the dual threat of stagnating economic growth and a radicalized working class in what one industrial consultant called “the gospel of consumption”—the notion that people could be convinced that however much they have, it isn’t enough.
