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.
1 Because men, on average, have a greater muscle mass and a lower body-fat percentage than women, they generally have a higher basal metabolic rate. 2  Age. 3  BMR is greater in childhood than in adulthood. 4  After age 20, BMR is estimated to drop about 2 percent to 3 percent each decade. Because men, on average, have a greater muscle mass and a lower body-fat percentage than women, they generally have a higher basal metabolic rate. 2  Age. 3  BMR is greater in childhood than in adulthood. 4  After age 20, BMR is estimated to drop about 2 percent to 3 percent each decade.