The answer would be TRUE because going through puberty/teenage years can be early in life like for 12 year olds, or normal time, and even in young adult hood because people's bodies are different so we change at different times, not at the same time.
A good way to find that out is to calculate the number to get an estimate. for example, about one in every 12 people has asthma. so take the population of new york, and divide it by 12 to get an estimate of a number of people in the state of new york that might have asthma.