Dumb and Grumpy: The Effects of Sleep Deprivation

This blog often discusses cognitive enhancers, such as mental mojo, but one of the single most devastating cognitive detractors is sleep deprivation. Increasingly, neuroscientific studies are showing that sleep deprivation is cognitive kryptonite. For starters, it blunts the brain's ability to be positive. According to findings of two related studies published in the Journal of Psychosomatic Research, less sleep makes the brain more sensitive to negative stimuli, and less sensitive to positive ones. This is why, as many new parents will…

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