Low testosterone levels are associated with a greater risk of heart attacks, diabetes, abdominal fat deposition and abnormal blood lipid levels. Cytokins, which cause inflammation in the arteries, are the latest suspected cause of heart disease. British researchers suggest testosterone suppresses cytokins and also boosts the immune system, thereby preventing heart disease. (J Endocrinol, 178: 373-380, 2003)

In his latest edition of Did You Know…Bullz-Eye.com Fitness Editor Mike Furci tackles the history of the American Vegetarian Society, ways to make your calves grow and whether or not testosterone levels are a significant risk factor for cardiovascular disease.