There's something else going on that's deeper at a cellular level.

Ab- absolutely, yes.

And it...

The mitochondria are little furnaces.

They can reproduce.

And one thing about mitochondria that, that freaked me out, and I hope the listeners will kind of get a mental picture on this, is, uh, in grad school, I had to go see these visiting professors and, you know, these boring old guys with their bald and have gray beards.

Oh, wait a minute.

Mm-hmm