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.
