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5 December 2013 11:26 am ,
Vol. 342 ,
An animal rights group known as the Nonhuman Rights Project filed lawsuits in three New York courts this week in an...
Researchers have been hot on the trail of the elusive Denisovans, a type of ancient human known only by their DNA and...
Thousands of scientists in the Russian Academy of Sciences (RAS) are about to lose their jobs as a result of the...
Dyslexia, a learning disability that hinders reading, hasn't been associated with deficits in vision, hearing, or...
Exotic, elusive, and dangerous, snakes have fascinated humankind for millennia. They can be hard to find, yet their...
Researchers have sequenced and analyzed the first two snake genomes, which represent two evolutionary extremes. The...
Snake venoms are remarkably complex mixtures that can stun or kill prey within minutes. But more and more researchers...
At age 30, Dutch biologist Freek Vonk has built up a respectable career as a snake scientist. But in his home country,...
- 5 December 2013 11:26 am , Vol. 342 , #6163
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Video: Fit Hearts Have Street Smarts
19 February 2012 1:45 pm
VANCOUVER, CANADA—For pedestrians, darting past whizzing cars at busy intersections can feel like a game of Frogger—especially when they're talking on a cell phone. But multitasking may be even trickier for kids who are out of shape, scientists reported here yesterday at the annual meeting of the American Association for the Advancement of Science (which publishes ScienceNOW). Researchers strapped virtual-reality goggles on 26 children between 8 and 10 years old and videotaped them crossing an imaginary street while simulated cars zoomed by. The kids also tried to avoid collisions while listening to music or talking on cell phones. Then, the team counted up the number of crashes and compared street-crossing success between volunteers who were aerobically fit (as defined by their oxygen use during exercise) and those who were not. Both groups were more likely to make it to the other side when not distracted by phone conversations. But kids who were in shape were better at crossing safely than their less-fit peers, despite the fact that they didn’t move any faster. Scientists have linked aerobic fitness in kids to bigger brains, specifically, the part involved in paying attention. Being in shape may help children juggle multiple tasks such as walking while talking—even if they're doing it in a video game.
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