A U.S.-based cross-sectional study in men aged >45 years found:
Forty percent of obese nondiabetic men and 50% of obese diabetic men aged ≥45 years have subnormal free testosterone concentrations.
We’ve talked about this before. Low testosterone makes it harder to make muscle, which makes it harder to burn calories and to avoid diabetes… A vicious cycle.
Obesity, high blood pressure, and diabetes damage blood vessels. Weight loss and exercise (including resistance training) can help reverse this, potentially restoring libido and sexual function.