Intelligence - nature or nurture? Researchers find a gene for intelligence and also that a bigger brain matters, yet other recent articles show how motivation affects learning.
 

Poor sleep in old age prevents the brain from storing memories

The connection between poor sleep, memory loss and brain deterioration as we grow older has been elusive. But for the first time, scientists have found a link between these hallmark maladies of old age. Their discovery opens the door to boosting the quality of sleep in elderly people to improve memory.
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