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How much sleep can we really survive on? As world leaders reveal they get just 3 hours a night
Sanae Takaichi - Japan's first female PM - revealed earlier this month that she's slept a maximum of three hours a night ...
Researchers tracked sleep-wake changes over five years in 704 women in their 80s and 90s using wrist actigraphy. Declining ...
Previous sleep research has focused mostly on the brain circuitry that snaps people awake in seconds or on how sleep debt ...
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