Does Caffeine Really Combat Sleep Deprivation? (M)

Up to five million more Americans could be experiencing sleep problems than they were five years ago.

Up to five million more Americans could be experiencing sleep problems than they were five years ago.

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Author: Dr Jeremy Dean

Psychologist, Jeremy Dean, PhD is the founder and author of PsyBlog. He holds a doctorate in psychology from University College London and two other advanced degrees in psychology. He has been writing about scientific research on PsyBlog since 2004.