H9) What Happens to Your Body on Intermittent Fasting (Day by Day)
Your body changes every single hour you don't eat. Here's what really happens.
Hour 0–4: You just finished eating. Your body is digesting and storing energy. Insulin is high. Fat burning? Completely off.
Hour 4–8: Insulin starts dropping. Your body slowly shifts from burning sugar to burning fat. You might feel a little hungry — that's normal.
Hour 8–12: Now fat burning kicks in. Your liver starts making ketones for energy. Brain fog lifts. Focus gets sharper.
Hour 12–16: This is where the magic happens. Autophagy begins — your body starts cleaning out old, damaged cells. Natural repair mode is on.
Hour 16+: Growth hormone spikes. Muscle is protected. Fat burns faster. You feel lighter, clearer, more energized.
You don't need to starve. You just need to time your eating right. That's intermittent fasting.
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