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Lost sleep leads to loss of brain cells, study suggests

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Sleep loss may be more serious than previously thought, causing a permanent loss of brain cells, research suggests.

In mice, prolonged lack of sleep led to 25% of certain brain cells dying, according to a study in The Journal of Neuroscience.

If the same is true in humans, it may be futile to try to catch up on missed sleep, say US scientists.

They think it may one day be possible to develop a drug to protect the brain from the side-effects of lost sleep.

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Brain Cell Life Span Finding In Mice Seen As Good News For Life Extension Enthusiasts

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Brain cells can live at least twice as long as the organisms in which they reside, according to new research.

The study, published today (Feb. 25) in the journal Proceedings of the National Academy of Sciences, found that mouse neurons, or brain cells, implanted into rats can survive with the rats into old age, twice as long as the life span of the original mice.

The findings are good news for life extension enthusiasts.

“We are slowly but continuously prolonging the life of humans,” said study co-author Dr. Lorenzo Magrassi, a neurosurgeon at the University of Pavia in Italy.

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Brain Cells Life Span

Mouse neurons implanted into a rat brain can live twice as long as the mice from which they were taken, new research suggests.

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http://www.huffingtonpost.com/2013/02/26/mouse-brain-cells-life-span-extension_n_2762163.html?utm_hp_ref=weird-science

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Chimp Brain Study Spotlights Key Role Of Neural ‘Connectivity’ In Human Intelligence

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Despite sharing 98 percent of our DNA with chimpanzees, humans have much bigger brains and are, as a species, much more intelligent. Now a new study sheds light on why: Unlike chimps, humans undergo a massive explosion in white matter growth, or the connections between brain cells, in the first two years of life.

The new results, published today (Dec. 18) in the Proceedings of the Royal Society B, partly explain why humans are so much brainier than our nearest living relatives. But they also reveal why the first two years of life play such a key role in human development.

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Chimp Personalities

Unlike human brains, those of chimpanzees don’t go through a rapid explosion in neural connectivity during the first two years of life, which may explain humans’ superior intelligence.

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http://www.huffingtonpost.com/2012/12/19/chimp-brain-neural-connectivity-human-intelligence_n_2329438.html?ref=topbar

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Genes Tied To IQ, Brain Size In UCLA ENIGMA Study

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Brain size and smarts are, to some extent, genetic — and now, a team of more than 200 researchers has uncovered specific genes that are linked to both brain volume and IQ.

Though scientists have suggested bigger brains are “smarter,” this study is the strongest case yet for a genetic connection to brain size and to IQ. Of course, brain size is not 100 percent correlated with a person’s intelligence, and other factors, including connections between brain cells and even a person’s experiences, play roles.

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Garpenbrain

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.Click link below for story and video:

http://www.huffingtonpost.com/2012/04/16/genes-iq-brain-size_n_1427966.html?ref=topbar

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