The biological phase that occurs when a woman stops menstruating. Menopause usually occurs between 45-50, and is marked by an increase in testosterone production and a decrease in estrogen production. This can cause a range of symptoms including insomnia, irregular periods, headaches and hot flashes.

Menopause can also cause vaginal dryness, and many post-menopausal women use over-the-counter personal lubricants for this reason. Some women also experience changes in sex drive during (and after) menopause.