What are hormones?
Hormones are messengers which co-ordinate many functions in the body, including growth, the menstrual cycle (periods) and metabolism. Female hormones include: Oestrogen, Progesterone, Follicle Stimulating Hormone (FSH) and Luteinising Hormone (LH). They all work in a cyclical pattern to regulate the menstrual cycle. These hormones also play a large role in pregnancy and birth.