thats true in afghanistan and rural india but not everywhere....
you try doing manual labor every day with hardly any food for 20 yrs and see watcha look like at 40 
its not really a racial thing,,,,,,,,,its just something i noticed. you never really see a pretty 40-something indian woman, even here in america...........just young girls and old ladies
but i have also noticed the SAME thing with RUSSIAN girls..............they either look like stunning buxom blond beauties.......or old fucking maids............kind of like you said, probably has something to do with living hard lives................
but for some reason russian chicks look like this when they are 18:

but look like this by age 30:

and like this by 50:

............im speaking in sweeping generalizations of course