Once women reach the menopause years, typically around the age of 50, a variety of physiological changes and menopause symptoms occur that can have a profound impact on their lives. Menopause is a term that refers to the end of menstruation, the result of the natural decline in the hormones (estrogen, progesterone and others) produced in the ovaries. After years of preparing and releasing eggs, the ovaries eventually reach a point where they end their monthly routine. As hormone levels decrease, a number of symptoms may emerge, although their presentation and severity varies greatly from woman to woman. The most common menopause symptoms are hot flashes, depression, insomnia, vaginal dryness, irritability, mood swings and headaches.