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science news: hearts, longevity, tectonics, sleep, race
We can now grow a new heart using a real heart's collagen as a scaffold for new cells, and even get it beating. So far, rat hearts, and only a weak beat, but wow.
Resveratrol, a derivative of red wine, has been found to extend lifespan in humans.
Nasal hormone spray eliminates effects of sleep deprivation in monkeys.
A molecular biologist uses ( Read more... ) -
The real science of sleep
No sleep means no new brain cells...and makes you fat (conversely, extra sleep helps people lose weight). Also, you can solve problems, consolidate memories, and even recover lost memories in your sleep. So can mice. Sleep deprivation is dangerous and unproductive. Most kids don't get enough sleep. If you can't manage a long night's sleep, a ( Read more... )