Which gender goes through puberty first and why in 150 words?

Girls typically enter puberty before boys, usually starting between ages 8 and 13. This difference is largely due to biological and hormonal factors. Girls experience the onset of puberty as their bodies begin producing higher levels of estrogen, leading to physical changes such as breast development and the start of menstruation. In contrast, boys generally begin puberty later, around ages 9 to 14, as their bodies increase testosterone production, resulting in changes like growth of facial hair and deepening of the voice. The timing of these hormonal changes is influenced by genetic, environmental, and nutritional factors, but on average, girls tend to reach puberty earlier than boys.