Testosterone is the androgenic anabolic steroid hormone. It is formed through a process of stereoidogenesis from cholesterol. The hormone acts through testosterone receptors and is responsible for the development of secondary sexual characteristics in males. It is also important for the general well being of the male human. It keeps depression at bay and maintains adequate energy levels throughout.

The normal testosterone does not cause side effects in males, however, one of its rather unpleasant effects is the increase in the development of sebaceous glands, and this leads to increased sebum production, oily skin and finally acne.  Another side effect on the skin is the reduced elasticity in comparison with muscle gain which causes striate, or stretch marks.

Commercial use of testosterone is on the increase for its anabolic effects. These include, increased muscle mass, increased muscle strength and endurance, increased bone density, strength and alignment.  Increased use of these hormonal synthetic steroids leads to the testosterone side effects that have been highly studied.

The use of synthetic testosterone has a negative feedback on the production of the body’s own testosterone. Since the androgen receptors are fully occupied by the new substitute, the gonads view this as a command to stop synthesis of testosterone.  As a result of the constant lack of work, there is reduced testicular size.

The body’s general well being is lost. The normal sleep wake cycle is distorted as insomnia takes over.  There is also a predilection for depression associate with lethargy as the catabolic effect of other hormones are slowed down, reducing the available amounts of energy available.  The most worrisome side effects though are the ones on the cardiovascular system. Testosterone leads to increased production of the bad cholesterol which then lines up blood vessels leading to heart attacks and the possibility of strokes.