Dehydroepiandrosterone/dehydroepiandrostenedione (DHEA, more correctly didehydroepiandrosterone), also known as androstenolone as well as 3β-hydroxyandrost-5-en-17-one or 5-androsten-3β-ol-17-one, is an important endogenous steroid hormone. In its pharmaceutical drug form it is called prasterone (HAN). It is the most abundant circulating steroid hormone in humans, in whom it is produced in the adrenal glands, the gonads, and the brain, where it functions predominantly as …