Population studies suggest that 10% to 25% of men over 50 may have low testosterone.

That is, men with medical problems or who are in poor general health might then develop low testosterone.

Men with diabetes are more likely to have low testosterone.

If low testosterone is the cause, treating it can help.

Research into the relationship between low testosterone and several other health conditions is ongoing.

But that doesn't mean low testosterone is the root of the problem.

And men with low testosterone are more likely to later develop diabetes.

Men with very low testosterone are also more likely to become obese.