How Hormones Control the Reproductive System

Hormones act as chemical messengers that control every reproductive step.
The brain’s hypothalamus and pituitary gland set the cycle in motion.
Estrogen and progesterone regulate the female cycle and fertility.
Testosterone fuels sperm production and male sexual drive.
LH and FSH synchronize ovulation and sperm formation.
Hormone levels rise and fall in precise, repeating patterns.
Even slight hormonal changes can affect mood, energy, and fertility.
Puberty begins when hormone production dramatically increases.
During pregnancy, new hormones sustain and protect the baby.
After menopause, hormone levels shift again, signaling a new phase of life.