Earlier quoted context omitted.
> If Ozempic is so great, how come our bodies don't just... While I agree with your sentiment, your argument here assumes the human body always makes intelligent decisions for itself. My obstructive sleep apnea would like a word. After it's done choking me awake, of course. The body is a marvelous machine, but it is far from a perfect or intelligent design. We are lucky to have what we have, but expect operating mist…
I agree with this criticism in the case of sleep apnoea, since the respiratory system is complicated. By intuition, it seems like the evolution of a complicated trait should require significant genetic changes, and thus be more likely to get stuck in a local maximum. I'd expect the respiratory system to be quite resistant to change: what if you've got an SNP that reduces sleep aponea but also prevents peristalsis, sp…
And it will perpetually remain possible for it to very abruptly and unexpectedly prove advantageous once again.
Primates in the wild really hit the nail on the head here. We clearly lost the equivalent at some point and haven't rapidly regained it. There has to be a reason for that (though it might well prove to be entirely incidental).