Which brain function is most affected by sleep deprivation?
Quick Answer
Attention and executive control are among the first brain functions to decline with sleep deprivation. Reaction time and judgment also worsen quickly.
The Full Story
Sleep deprivation affects many brain functions, but attention, working memory, and decision-making are often hit first. People who are sleep deprived are slower to respond, more distractible, and more likely to make poor judgments. Imaging studies show altered activity in the prefrontal cortex and other control networks. Even one night of insufficient sleep can impair performance noticeably. This is why sleep is considered essential for healthy cognition, not just rest.
Key Facts
YouTube Angle
Suggested video title for this topic:
"One lost night of sleep can hit your brain harder than you think."
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