Answer:
Hormones are responsible for this.
Step-by-step explanation:
Adolescence is a period of great discoveries and changes in the human body. In this phase, hormones become protagonists and thus men and women move from childhood to adulthood.
Like hormones, teenage emotions are also more intense, which makes the process even more delicate. Rebellious attacks, poor school performance, changing behavior to fit into groups, and, especially, withdrawal from parents are all aspects that show how feelings are highly affected by this transition. In short, hormones are the grands responsible for the ups and downs of teenagers.