Size does matter: those with bigger testes have a higher risk of developing cardiovascular disease, according to a new study in the Journal of Sexual Medicine. Using a Prader orchidometer, an instrument that measures the size of the testes, researchers measured the size of 2, 908 men’s testes. 61% of the participants had erectile dysfunction, 26, 6% prone to premature ejaculation, 14, 8% reporting low libido, and 7, 9% experiencing difficulty ejaculating. The majority of testes size ranged from about 5ml to 30 ml.

The results indicated that men with higher testicular volume, above the norm of 20ml, were at higher risk for major adverse cardiovascular disease including heart disease, coronary artery disease and heart failure. However, factors such as elevated blood pressure, drinking and smoking, and obesity, also put this group at risk. Stretch Your Way To A Happier Heart then try these 5 New Rules for a Healthy Heart.