Puberty is the time when your body starts changing and growing into an adult form. This usually happens around age 11 or 12 for girls and a bit later for boys.
So, when we say "puberty," most of the time we're talking about how someone's body is changing - their voice gets deeper, they grow taller, hair starts to appear in new places, and periods start for girls. It can be an exciting but also confusing time as people try to figure out who they are and how to take care of their bodies. Sometimes puberty gets blamed for mood swings or other emotions that come with growing up, but it's really just a natural part of life.
A developmental phase brought about by the action of hormones as part of the maturing process. For humans, there are three in total.
