Continuing coverage: Testosterone treatment prescribed for men whose bodies produce little or no hormones doesn't increase the risk of heart attack, according to a Houston-area study that should ease fears of men with the condition. The study, conducted by researchers at UTMB, rebuts recent research that suggested the steroid hormone may be hazardous to men's cardiovascular health. The research had stirred much concern among both doctors and patients because testosterone use has exploded in recent years. “Testosterone's perceived risk and impact on patients has been in the news a lot lately,” said Jacques Baillargeon, a UTMB professor of epidemiology and the study's lead author. “I hope this study brings some balance to the debate, that it's weighed alongside all the evidence.”