Other studies have suggested that Tribulus also acts by increasing the level of dehydroepiandrosterone (DHEA), a naturally occurring substance in the body believed to be important for a healthy sex drive. To date, its effects on treating impotence and other sexual dysfunctions have been extensively studied. To date, its effects on treating impotence and other sexual dysfunctions have been extensively studied. This device works quite well, although some men complain about the discomfort of the elastic ring in addition to the hassle of, well, pumping up. Although they are often dismissed as ineffective solutions to impotence, more and more clinical research studies have found that herbs can help impotent men. The physician squeezes the glans (head) of the penis, which immediately causes the anus to contract if nerve function is normal. Boredom, marital problems or negative feelings toward your partner may contribute to an impotence problem.