Mitophagy, the clearing of damaged mitochondria, increases with more vigorous and intense exercise.

“mitophagy can clear away an entire dysfunctional mitochondria to be used and recycled or it can clear away pieces of A Dysfunctional mitochondria so when that ex when you're doing that acute exercise your mitochondria if you have a dysfunctional one the the mitophagy pathway gets activated and the mitochondria fizzes off it kind of goes to this mitochondrial fision process and that damaged part of the mitochondria then goes and is recycled to through the lone and then you what you have is a long-term effect of after doing you know routine high-intensity exercise you then have more healthy functional mitochondria because you're just getting rid of the damaged part of the mitochondria if the mitochondria is dysfunctional enough you're going to get rid of the whole mitochondria”