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Story perspectives

Poor Sleep Fuels Cravings, Alters Brain Function

9/24/2025

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Story summary
  • Sleep deprivation alters brain function, increasing cravings for high-calorie foods and reducing impulse control.
  • Imaging shows one night of poor sleep lowers prefrontal cortex activity and heightens reward-area reactivity.
  • Insufficient sleep disrupts hunger hormones, increasing ghrelin and decreasing leptin, fueling hunger.
  • Essential workers face irregular sleep patterns, and quality sleep can rebalance hormones and reverse metabolic and appetite effects.