Puberty

In general, boys begin puberty between the ages of 10 and 13 years old and experience growth spur...

Girls typically start puberty a year or two before they get their first period and the average ag...

During this year a boy usually grows between 7 and 12 centimetres (2.75 and 4.75 inches) and a gi...

They tend to grow most quickly between ages 12 and 15. The growth spurt of boys is, on average, a...

First of all, no. They aren't all supposed to be taller. It's true that often girls have a growth...