The Science of Fasting: How Intermittent Fasting Works

Intermittent fasting is not just a diet trend; it has been practiced for millennia and is deeply rooted in human evolutionary biology. Today, modern science is uncovering the profound metabolic and cellular benefits that occur when we abstain from food for extended periods.

What Happens to Your Body When You Fast?

The moment you stop eating, your body undergoes several significant physiological changes designed to help you survive and thrive during periods of food scarcity:

1. Insulin Drops: Insulin levels drop significantly, which facilitates fat burning. Your body transitions from storing energy to mobilizing it.

2. Cellular Repair (Autophagy): After 16-24 hours of fasting, your body initiates a crucial cellular waste-removal process called autophagy. This clears out damaged cells and proteins, which is linked to anti-aging and disease prevention.

3. Hormone Optimization: Fasting increases the release of norepinephrine and human growth hormone (HGH). These hormones promote muscle preservation and increase your resting metabolic rate, ensuring you burn fat without losing muscle mass.