There's also the link between T-therapy and cardiovascular problems. Some studies have found that men on T-therapy have few cardiovascular issues, while other studies point to the opposite. It appears that older men are particular vulnerable to heart attacks and elevated blood pressure. And in fact, the 2010 Testosterone in Older Men study had to be halted once these findings became apparent . The 209 men in this trial were an average age of 74 and were already diagnosed with high rates of chronic diseases like cardiovascular disease and diabetes.