"I am very cautious about committing someone for life to medication," said Dr. Kathleen L. Wyne, who directs research on diabetes and metabolism at Houston's Methodist Hospital Research Institute and serves on the Sex Hormone and Reproductive Endocrinology Scientific Committee for the American Association of Clinical Endocrinologists. "That does frustrate patients because they have heard about [Low T] from TV and friends."
Present in much greater levels in men than women, testosterone initiates the development of the male internal and external reproductive organs during foetal development and is essential for the production of sperm in adult life. This hormone also signals the body to make new blood cells, ensures that muscles and bones stay strong during and after puberty and enhances libido both in men and women. Testosterone is linked to many of the changes seen in boys during puberty (including an increase in height, body and pubic hair growth, enlargement of the penis, testes and prostate gland, and changes in sexual and aggressive behaviour). It also regulates the secretion of luteinising hormone and follicle stimulating hormone. To effect these changes, testosterone is often converted into another androgen called dihydrotestosterone.
The second theory is similar and is known as "evolutionary neuroandrogenic (ENA) theory of male aggression". Testosterone and other androgens have evolved to masculinize a brain in order to be competitive even to the point of risking harm to the person and others. By doing so, individuals with masculinized brains as a result of pre-natal and adult life testosterone and androgens enhance their resource acquiring abilities in order to survive, attract and copulate with mates as much as possible. The masculinization of the brain is not just mediated by testosterone levels at the adult stage, but also testosterone exposure in the womb as a fetus. Higher pre-natal testosterone indicated by a low digit ratio as well as adult testosterone levels increased risk of fouls or aggression among male players in a soccer game. Studies have also found higher pre-natal testosterone or lower digit ratio to be correlated with higher aggression in males.
Barbara Mintzes, at the University of British Columbia, said in a Skype interview, "Androgel was approved for a real condition—men who have a number of clinical or acquired conditions that affect testosterone, either through the testes or pituitary gland. So testosterone replacement therapy makes sense, and producing it in a gel makes sense. Where there is an actual need for the product, there's nothing wrong with that." But, she added, "When this gets marketed for what is essentially healthy aging, the antennas go up."
There is increasing interest in the group of patients who fail to respond to treatment with PDE-5 inhibitors and have low serum testosterone levels. Evidence from placebo-controlled trials in this group of men shows that testosterone treatment added to PDE-5 inhibitors improves erectile function compared to PDE-5 inhibitors alone (Aversa et al 2003; Shabsigh et al 2004).
Testosterone may prove to be an effective treatment in female sexual arousal disorders, and is available as a dermal patch. There is no FDA approved androgen preparation for the treatment of androgen insufficiency; however, it has been used off-label to treat low libido and sexual dysfunction in older women. Testosterone may be a treatment for postmenopausal women as long as they are effectively estrogenized.
It is a natural hormone present in the body known as Dehydroepiandrosterone (DHEA). It reduces the estrogen levels while boosting testosterone levels. It has been in use since so long to raise testosterone levels. Among all supplements, it is one of the famous and many researchers are working on it to tell how it stimulates testosterone production. It is banned for athletes and professional players.
When you’re under stress (be it from lack of sleep, workplace stress, emotional stress, stress from a bad diet, overtraining etc.), your body releases cortisol. Cortisol blunts the effects of testosterone (47), which makes sense from an evolutionary point of view – if we were stressed as cavemen chances are it was a life or death situation – not running late to a meeting - in this state (i.e. running from a lion) the body wouldn’t care if you couldn’t get it up, there was more to worry about!
Ghlissi, Z., Atheymen, R., Boujbiha, M. A., Sahnoun, Z., Makni Ayedi, F., Zeghal, K., ... Hakim, A. (2013, December). Antioxidant and androgenic effects of dietary ginger on reproductive function of male diabetic rats [Abstract]. International Journal of Food Sciences and Nutrition, 64 (8), 974–978. Retrieved from https://www.ncbi.nlm.nih.gov/pubmed/23862759