What is Testosterone?

Testosterone is the primary male sex hormone and anabolic (growth) steroid, it is primarily made by the testicles in men.

As men, we know the importance of testosterone. Testosterone plays a key role in the development of male reproductive organs (the testicles and prostate) and secondary sexual characteristics (basically the external traits that make a man – a man).

Testosterone is derived from cholesterol and if you are interested in the science the diagram below shows the insanely complex testosterone synthesis pathway. The most importance thing to understand is that

Testosterone Structure

Image courtesy of: Häggström M, Richfield D (2014). “Diagram of the pathways of human steroidogenesis”. Wikiversity Journal of Medicine 1 (1). DOI:10.15347/wjm/2014.005. ISSN 20018762.

If you are not interested in the science, just take a look at the other image on the bottom to see the end result of optimal levels of testosterone.

Optimal testosterone isn't built in a day

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