Origin and Etymology of is. Middle English, from Old English; akin to Old High German ist is (from sÄ«n to be), Latin est (from esse to be), Greek esti (from einai to be)
For the medical journal, see Menopause (journal). Menopause, also known as the climacteric, is the time in most women's lives when menstrual periods stop permanently, and they are no longer able to bear children. Menopause typically occurs between 49 and 52 years of age.
People usually get one of nine major forms of the disease: 1  Duchenne muscular dystrophy (DMD) is the most common form. 2  It mainly affects boys, and starts between ages 3 and 5. 3  Becker muscular dystrophy is like Duchenne, except milder. 4  It also affects boys but the symptoms start later -- between ages 11 and 25.