2006-12-13 11:35:43 · 4 answers · asked by cool dude 1 in Pregnancy & Parenting ➔ Newborn & Baby
Colleen was a little off by saying that 40 weeks would be 10 months. It would if every month was February - in fact with all the months with 30 or 31 days, 40 weeks is equal to about 9 "calendar months". It was an estimate accepted for years without being measured but is a good approximation.
Why - well, nerve cells grow more slowly than any other type of cell, and 9 months seems to be the time required due to the size and complexity of the human brain.
2006-12-13 11:43:15 · answer #1 · answered by Kate429 2 · 0⤊ 0⤋
It doesn't always take 9 months. It takes from 32 to 40 weeks. If one gestates to 32 weeks that would equal 8 months, if one gestates to 40 weeks that would be 10 monhts. Women give birth at different times during the 32/40 weeks which is why it is PRESUMED that the average would be 9 months.
2006-12-13 19:39:09 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Because thats how long it takes for the cells to grow, and the body to form and be functional.
lol.
2006-12-13 19:39:24 · answer #3 · answered by amosunknown 7 · 0⤊ 0⤋
Define "normal"? lol.
2006-12-13 19:44:02 · answer #4 · answered by Leni 3 · 0⤊ 0⤋