In the latest column by UTMB’s Dr. Victor S. Sierpina: A French study that showed a 33 percent decline in sperm counts among French men from 1989-2005. I confirmed these facts with Dr. Randy Urban, UTMB’s chairman of internal medicine and an endocrinology specialist who has done extensive research on testosterone. Both Drs. Urban and Dr. John La Puma are concerned that this decline in testosterone, commonly nicknamed “T,” is a real thing and a significant health hazard. It is likely is because of a number factors. Weight gain and associated insulin resistance in itself contributes to hormonal changes, lowered testosterone, along with increased risks of diabetes, heart disease and cancer. Visceral or belly fat is a factory of inflammatory chemicals and a cause of conversion of testosterone into estrogen, its female equivalent.