Older Adults' Forgetfulness Tied To Faulty Brain Rhythms In Sleep, Study Says - Slashdot

Older Adults' Forgetfulness Tied To Faulty Brain Rhythms In Sleep, Study Says - Slashdot:
"An anonymous reader quotes a report from NPR:
Older brains may forget more because they lose their rhythm at night. 
During deep sleep, older people have less coordination between two brain waves that are important to saving new memories, a team reports in the journal Neuron.
The finding appears to answer a long-standing question about how aging can affect memory even in people who do not have Alzheimer's or some other brain disease.
The study was the result of an effort to understand how the sleeping brain turns short-term memories into memories that can last a lifetime, says Matt Walker, the author of the book Why We Sleep.
...The team also found a likely reason for the lack of coordination associated with aging: atrophy of an area of the brain involved in producing deep sleep.
People with more atrophy had less rhythm in the brain, Walker says..."
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