Woman are best during her 20s give birth is easy as 123!
at 30 still ok have some difficulties sometimes..
at 40 here the problem, factory about to shut down, too much water
in your womb already,
So don't be too happy and taking things for granted...you want to stay till 50 than give
birth? that's hard to come by! by than you are considered Old woman...menapause ..
factory shut its door!
Bro Kuailan, the age 30 cut off is because 1st born after 30 years old generally carry greater risk for both the mother and the baby. But you are correct to say that the factory may shut down at the later stage - menopause. :o