World's largest sleep study shows too much shut-eye can be bad for your brain
Preliminary results from the world's largest sleep study have shown that people who sleep on average between 7 to 8 hours per night performed better cognitively than those who slept less, or more, than this amount.
from Latest Science News -- ScienceDaily https://ift.tt/2A1FQif
from Latest Science News -- ScienceDaily https://ift.tt/2A1FQif
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