How Puberty Activates the Reproductive System

Puberty begins when the brain signals the release of sex hormones.
Estrogen and testosterone trigger rapid physical and emotional changes.
The ovaries and testes become active, producing eggs and sperm.
Growth spurts, voice changes, and hair growth mark visible milestones.
The brain rewires to adapt to new hormonal patterns.
Menstruation begins in girls, marking reproductive maturity.
Boys experience increased muscle mass and deeper voices.
Mood swings and curiosity are part of hormonal adjustment.
Timing varies — everyone’s puberty clock is slightly different.
Puberty transforms the body into a reproductive-ready adult system.