365 Changes

Sleep and Hunger

Written by

Craig Constantine

in

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)

One thought like this, every morning.

You don’t need more information about eating. You need the right idea to show up at the right time — before hunger, before decisions, before habits kick in.

Every morning, 365 Changes sends you one. Not a meal plan. Not a rule. Just a question or idea to sit with while you make coffee. Each one is simple, but they accumulate — and slowly, the way you think about eating starts to shift.

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Learn more about the daily prompt.

There’s more to read here — a companion essay that goes deeper into this topic. It might explore why willpower fades by evening, how your kitchen layout shapes what you eat, or what it really means to become someone who simply eats well. Each one takes a few minutes and leaves you thinking.

There are 87 of them across five areas — identity, environment, knowledge, decisions, and troubleshooting — and a Reader membership unlocks them all.

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