After 72 hours of fasting, your body enters a state of ketosis, where it begins to burn fat for energy instead of glucose. This is due to the depletion of glycogen stores, the body's primary energy source. You will also experience an increase in ketone bodies, which are produced from the breakdown of fat.
Beyond the metabolic changes, a 72-hour fast can also lead to:
- Increased autophagy: This process helps remove damaged cells and regenerate new ones, promoting cellular repair and rejuvenation.
- Improved insulin sensitivity: Your body becomes more efficient at using insulin, potentially lowering your risk of type 2 diabetes.
- Possible changes in mood: Some individuals experience a temporary increase in sadness, self-blaming, difficulty in decision-making, and loss of libido.
- Increased appetite: As your body adjusts to a prolonged fast, you may experience an increased desire to eat.
It's important to note that fasting for extended periods should be done under the guidance of a healthcare professional, especially if you have any underlying medical conditions.
