Why do cells, and by extension humans, age? The answer may have a lot to do with mitochondria, the organelles that supply cells with energy. Though that idea is not new, direct evidence in human cells had been lacking.
Why do cells, and thus people, age? The solution could be related to mitochondria, the organelles that provide energy to cells. Though this is not a new thing, direct evidence in human cells had previously been lacking, until now.