age of perimenopause onset
This phase presents similar symptoms to menopause that gradually increase, including fatigue, irritability, mood swings, and weight gain. The difference is that women in perimenopause continue to have periods, although they may be irregular. When you do not have a period for 12 months, you have entered menopause. Early menopause occurs in women between the ages of 40 and 45, and occurs naturally, in other words, is not medically or surgically initiated.