The process is called autophagy, and it's how the body recycles its internal waste, breaking down old, malfunctioning cells and turning them into energy.

This natural system activates during fasting, when no external nutrients are available. Instead of shutting down, the body enters a powerful repair mode, cleaning itself from the inside out. It removes toxins, damaged proteins, and harmful cellular debris and uses those parts to rebuild new, healthier cells.

Autophagy has been linked to slowing aging, improving immunity, reducing inflammation, and even protecting the brain from disorders like Alzheimer's and Parkinson's. It's now considered one of the most important mechanisms for long-term health.

This discovery has influenced modern health practices such as intermittent fasting, time-restricted eating, and extended fasts, all aiming to trigger this self-healing process. By cycling between feeding and fasting, the body maintains balance, renews itself, and reduces the risk of many chronic diseases.

The research also suggests that autophagy may help the body fight cancer, repair metabolic damage, and support longevity without relying on medication. It's a clear reminder that sometimes giving the body less can do so much more.