Menopause
The menopause transition typically begins between 40 and 50 years of age (average 47.5). The duration of perimenopause may be for up to eight years. Women will often, but not always, start these transitions (perimenopause and menopause) about the same time as their mother did.
Late-onset hypogonadism
The terms "male menopause" and "andropause" are used in the popular media and are misleading, as they imply a sudden change in hormone levels similar to what women experience in menopause. A decrease in libido in men as a result of age is sometimes colloquially referred to as "penopause".