In the U.S., someone attempts suicide every minute. What compels so many people to end their lives prematurely?
Depo-provera is the brand name of a method of birth control that consists mostly of a hormone much like progesterone, a hormone that works with estrogen to regulate the menstrual cycle.
Chronic depression involves brain chemistry. Neurons in the brain communicate with each other via neurotransmitters, chemical messengers sent from one nerve cell to another. To move between cells a neurotransmitter must cross the synapse–the junction between neurons.