Self-digestion, also known as autophagy, is a natural process where cells break down and recycle their own components. This mechanism helps maintain cellular health by removing damaged proteins and organelles, allowing cells to function optimally. It plays a crucial role in cellular maintenance and can be triggered by various factors, including nutrient deprivation and stress. In addition to its role in cellular health, self-digestion is important for overall organismal health. It has been linked to longevity and may help protect against diseases such as cancer and neurodegenerative disorders. Understanding self-digestion can provide insights into potential therapeutic approaches for various health conditions.