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.
Causal Factors. In heterosexual men under age 35, acute epididymitis is most often caused by a sexually transmitted infection with chlamydia or gonorrhea. These bacteria frequently cause serious infections of the genitals and reproductive systems of men and women.