👉 Menses, also known as menstrual cycle or menstrual period, is a recurring biological process that occurs during women's reproductive life. It involves the release of estrogen and progesterone in the body, which are crucial for various functions such as pregnancy and childbirth. In men, menstruation can occur at any age, but it typically begins around 13 to 14 years of age and lasts until about 20 or so. Menstrual cycles may be influenced by factors like hormonal changes