How about...
long legs mean high speed (something our HUNTER-gatherer ancestors would appreciate). I do not think cholesterol/diabetes/cardiovascular disease was a serious problem when you could take your pick from cholera, malaria, plague, lions, angry mammoths/woolly rhinos, starvation, war with neighbouring tribe and all other forms of "natural" population control.
And indeed, parnter selection is often based on things the opposite thinks are hot.


