Autophagy is a cellular process that "removes" all cellular debris, meaning all old and damaged cell parts. It's a way in which cells clean themselves, and it actually comes from the Greek words "autos" (self), and "phagomai" (eating).
Here is how autophagy contributes to longevity:
- it removes damaged and potentially dangerous cell parts,
- helps cells to maintain healthy and functional,
- prevents age-related diseases,
- offers a source of food in times of starvation or prolonged hunger,
- takes part in balancing cellular energy, especially under increased stress.