Terry Waters, a former college wrestler and baseball player, loved working out. He got real pleasure out of pushing himself hard at the gym, and he liked the feeling of tired but virtuous afterwards. He figured regular physical activity and its health benefits would always be a part of his life.
Then came marriage, three kids, a demanding job as a software engineer in Boston — and a thousand and one excuses not to make it to the gym. “For a little while, you convince yourself you’re still in pretty...
Experts don't suggest that low testosterone causes these conditions. In fact, it might be the other way around. That is, men with medical problems or who are in poor general health might then develop low testosterone.
Research into the relationship between low testosterone and several other health conditions is ongoing.
Diabetes and Low Testosterone
A link between diabetes and low testosterone is well established. Men with diabetes are more likely to have low testosterone. And men with low testosterone are more likely to later develop diabetes. Testosterone helps the body's tissues take up more blood sugar in response to insulin. Men with low testosterone more often have insulin resistance: they need to produce more insulin to keep blood sugar normal.
As many as half of men with diabetes have low testosterone, when randomly tested. Scientists aren't sure whether diabetes causes low testosterone, or the other way around. More research is needed, but short-term studies show testosterone replacement may improve blood sugar levels and obesity in men with low testosterone.
Obesity and Low Testosterone
Obesity and low testosterone are tightly linked. Obese men are more likely to have low testosterone. Men with very low testosterone are also more likely to become obese.
Fat cells metabolize testosterone to estrogen, lowering testosterone levels. Also, obesity reduces levels of sex hormone binding globulin (SHBG), a protein that carries testosterone in the blood. Less SHBG means less testosterone.