Answer:
increase in aggression
Explanation:
Aggressiveness is a common emotional change in teens. Teenagers are usually more aggressive than children, because during adolescence hormone production is occurring "at full force". This causes teenagers to have high levels of testosterone which causes increased aggression.
Teenagers do not usually have increased self-esteem, which is quite the opposite, as adolescence is a phase of insecurity where we are still discovering. In addition, the onset of menstruation and the onset of semen production are not emotional but physiological changes.
