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.
The average age of a last menstrual period (LMP) is age 51 in the U.S. The FSH will then rise 10-20 times and reach a maximum within 1-3 years after the LMP.The symptoms of decreased hormone levels and perimenopause symptoms are varied, unpredictable and often go unrecognized as a perimenopause symptom.