puberty.....
During teen years, pubic hair will grow, and there will be hair on the armpits also.
Yes it's a known fact that many teen boys become like hungry wolves in puberty.The energy is needed for growing.
Actually, boys' hair can grow just as long as girls' hair. How long your hair grows only depends on how short you cut it.
i belive hormones
They go through puberty
Boys and girls both have the same head of hair but girls tend to grow their hair longer rather than boys who cut it short. :)
Both girls and boys grow hair!!
Dry your hair with a hair dryer, instead of just towel drying your hair. It will make anyones hair grow out longer.
It depends on the person
Yes, it is perfectly normal.
generally post puberty