How does braiding your hair help make it grow faster, or helthier?
No. Your hair grows at a genetically determined speed.The style you put it in has not bearing on hair growth.
I don't know about making your hair grow any faster but it does reduce the daily damage of our hair such as the heat we apply to our hair with the constant blow drying and curling irons. It also reduces hair breakage.
by putting your hair in braids it reduces breakage therefore giving the impression of growing at a faster rate.