Medical Today

Testosterone and the biologically available free testosterone decrease gradually after age 30. Low levels of these hormones are linked to muscle and bone loss, erectile dysfunction, decreased sex drive, psychological depression and reduced self esteem.

A review of literature by researchers from Boston University School of Medicine concluded that low testosterone contributed to the Metabolic Syndrome– a group of symptoms that include high blood pressure, abdominal fat deposition, insulin resistance, type 2 diabetes, blood clotting abnormalities and inflammation. The Metabolic Syndrome increases the risk of heart attack, stroke, obesity, erectile dysfunction, poor energy levels and some types of cancer. The measurement of blood testosterone levels should be a routine part of medical examinations in aging men.