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)
August 21st, 2013. Andropause is the technical term for the hormone imbalance all men will experience as they age. Commonly called male menopause, andropause typically begins to affect men between the ages of 35 and 40. In some cases, however, the testosterone deficiencies associated with andropause may occur in much younger men.
It's normal for semen volume to decrease as a man ages. Several studies have shown that the volume of semen per ejaculation decreases continuously between ages 22 and age 80. The reason you probably never noticed this before is that the decline in semen production happens so gradually.