If you slept poorly, intense cravings aren’t a mystery—they’re a predictable hormonal consequence. Sleep deprivation increases ghrelin by 28%, decreases leptin by 18%, and rewires your brain’s reward system to find high-calorie foods more appealing. You’re not weak; you’re chemically primed to crave. This companion explores the hormonal shift from sleep loss, how the brain changes (prefrontal cortex dims while reward centers amplify), why even mild sleep debt counts, and the troubleshooting move when cravings spike for no apparent reason. (3 min read)
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