However, both the connection between changes in the structure of the left ventricle and decreased cardiac function, as well as the connection to steroid use have been disputed. These changes are also seen in non-drug-using athletes, but steroid use may accelerate this process. Possible effects of these alterations in the heart are hypertension, cardiac arrhythmias, congestive heart failure, heart attacks, and sudden cardiac death. Other side-effects can include alterations in the structure of the heart, such as enlargement and thickening of the left ventricle, which impairs its contraction and relaxation, and therefore reducing ejected blood volume. By understanding your health and goals, you and your doctor can work together to find the safest and most effective approach. They can assess your symptoms, run tests, and help you determine whether TRT is appropriate. The best way to make an informed decision is to talk to a qualified healthcare provider. If you are dealing with symptoms of low testosterone, TRT might be a safe and effective option, but only if it is prescribed by a doctor after proper testing. Some mild side effects, like skin irritation or fluid retention, can occur, but these are usually manageable. Testosterone, anabolic steroids, and similar substances are banned in sports because they can enhance athletic performance, giving the athlete a competitive advantage.19 They can also pose harm to the athlete. Often, men recovering from steroid use might need post-cycle therapy with a medication like Clomid to fully restore testosterone levels. "Both TRT and steroids involve testosterone or related hormones," says urologist Joshua Calvert, M.D. So, how is taking steroids different from using testosterone replacement therapy (TRT) to treat a medical condition? Both classes of compounds indeed increase testosterone levels in men with hypogonadism due to various causes. A case-control study also suggests that AAS use leads to a persistent small reduction in testosterone levels (177). Administration of the oral anabolic steroid 17α-methyltestosterone increases urine excretion of creatinine and guanidinoacetic acid (160). "Among 12- to 17-year-old boys, use of steroids and similar drugs jumped 25 percent from 1999 to 2000, with 20 percent saying they use them for looks rather than sports, a study by insurer Blue Cross Blue Shield found." Another study found that non-medical use of AAS among college students was at or less than 1%. These effects include harmful changes in cholesterol levels (increased low-density lipoprotein and decreased high-density lipoprotein), acne, high blood pressure, liver damage (mainly with most oral AAS), and left ventricular hypertrophy. Their use carries significant legal, ethical, and health risks, particularly when obtained illegally or used without medical guidance. On the other hand, anabolic steroids are often used for aesthetic or competitive reasons. The risk level increases with prolonged use and stacking (using multiple types of steroids simultaneously). Steroids are specifically engineered to maximize anabolic (muscle-building) effects, often at the cost of your health. Relatedly, Handelsman exclusively uses the term "androgen" to refer to these agents in his publications. Handelsman has argued that these terms should be discarded, and that instead, AAS should all simply be referred to as "androgens". David Handelsman has criticized terminology and understanding surrounding AAS in many publications. The new steroid was approved for use in the U.S. by the Food and Drug Administration (FDA) in 1958. Clinical trials on humans, involving either PO doses of methyltestosterone or injections of testosterone propionate, began as early as 1937. The chemical synthesis of testosterone was achieved in August that year, when Butenandt and G. DHT, via its metabolite 3α-androstanediol (produced by 3α-hydroxysteroid dehydrogenase (3α-HSD)), is a neurosteroid that acts via positive allosteric modulation of the GABAA receptor. For example, problem with function of pituitary gland or adrenal glands may lead to reduced testosterone production. As surprising as it may be, women can also be bothered by symptoms of testosterone deficiency. Some men who have a testosterone deficiency have symptoms or conditions related to their low testosterone that will improve when they take testosterone replacement. The testes produces less testosterone, there are fewer signals from the pituitary telling the testes to make testosterone. Among women, perhaps the most common cause of a high testosterone level is polycystic ovary syndrome (PCOS). Having too much naturally-occurring testosterone is not a common problem among men. Designer steroids are AAS that have not been approved and marketed for medical use but have been distributed through the black market. AAS users tend to research the drugs they are taking more than other controlled-substance users;citation needed however, the major sources consulted by steroid users include friends, non-medical handbooks, internet-based forums, blogs, and fitness magazines, which can provide questionable or inaccurate information. Another 2007 study found that 74% of non-medical AAS users had post-secondary degrees and more had completed college and fewer had failed to complete high school than is expected from the general populace. In contrast, steroids are often taken without any medical supervision, typically by individuals who want to increase muscle mass or enhance performance. Unlike TRT, steroids are not aimed at restoring normal hormone levels, but rather at achieving supra-physiological levels of testosterone. Testosterone replacement therapy (TRT) is a medically supervised treatment that restores testosterone levels in men who suffer from low testosterone, which is known as hypogonadism. TRT is a medical treatment designed to help men who have low testosterone levels due to aging, illness, or other medical conditions.