"Hormones are created in response to signals from the brain. Hormones are like a radio signal, and the receptors are the antenna. When you take the pill, it over rides the radio signal. It sends it's own signals to the receptors that stop ovulation. The body's natural receptors then get used to this signal, and act accordingly. But what happens with long term use? or in young women bodies that are still forming and whose hormones are still settling down?"