I mean, basically, it's the same monkey body we had when we first traipsed out of the woods and onto the savannahs.
It's built to last about 25 years. After which time it starts going wrong. We've quadrupled our life expectancy, but without upgrading the vehicle. And so we spend three quarters of our life-span in a body that's performing well below its best. How stupid is that?
We accept that an athlete is past it by thirty. How abject!
And it's so fragile. Why settle for skin and bone when you could have titanium?