Testosterone deficiency in men is linked with chronic health conditions finds a study. If we look at data for men from a population level it has become evident over time that chronic disease is on the rise in older males says Mark Peterson lead author of the study. But we're also finding that a consequence of being obese and physically inactive is that men are seeing declines in testosterone even at younger ages. Peterson and colleagues studied this relationship among testosterone age and chronic disease. Previous research in the field has shown that total testosterone deficiency in men increases with