Our bodies are constantly changing from the day we are born until the day we die. Puberty is the period of time when children begin to mature biologically.
Girls start to grow into women and boys into men.
This process can take a year or even six years. This time period is when a child's body takes on those characteristics that define it sexually. Keep in mind that everyone matures at their own pace, but eventually we all catch up. Puberty leads to adolescence. Adolescence can be a very difficult time.