Menopause is the period in an adult human female's life when the menstrual cycle stops permanently, indicating the end of the woman's ability to have children. Individuals experience this phase between the ages of 45 and 55, although it can vary based on a number of factors such as environmental, biological and genetic predisposition. Experts give a diagnosis of menopause when periods have not occurred for more than a year. Hormonal changes occur during the period, leading to symptoms such as hot flashes, mood swings and vaginal dryness. Menopause usually requires no particular treatment as it is a naturally occurring part of a person's life.