Adrenals and Steroidogenesis

All corticosteroid hormones share cholesterol as a common precursor. 

Androgens

Cells in zona reticularis of the adrenal glands produce male sex hormones, or androgens, the most important of which is DHEA. In general, these hormones do not have an overall effect in the male body, and are converted to more potent androgens such as testosterone and DHT or to estrogens (female sex hormones) in the gonads, acting in this way as a metabolic intermediate.

https://en.wikipedia.org/wiki/Adrenal_gland

https://en.wikipedia.org/wiki/Steroid#Steroidogenesis