DHEA is a naturally occurring steroid hormone produced in the adrenal glands by both men and women. Production of it decreases with age. DHEA is not recommended for people under 40 years of age, unless DHEA levels are known to be low (<130 mg/dl in women and <180 mg/dl in men). Therapeutic doses of 10-50mg of DHEA are used by many mature individuals (age 40+) for increase in perceived physical and psychological well-being (improved quality of sleep, more relaxed, increased energy, better ability to handle stress, improved depressive state)1. For men or women who have either adrenal insufficiency or hypopituitarism, although gluco-and mineralocorticosteroid replacement is needed, 50 mg a day of DHEA is sufficient for replacement2. Studies have shown no dangerous side effects from DHEA supplementation when taken in normal recommended therapeutic doses3. With respect to potential increase of the urinary testosterone/epitestosterone ratio (T/E) through DHEA supplementation, studies support DHEA use of 50mg/day or less having only slightly affected levels for a short period of time (2–5 h) without exceeding the 6:1 current acceptable ratio for NANBF and the IPE. DHEA’s effectiveness as an anabolic or energy-producing agent remains unproven.
This is a great question that, unfortunately, cannot be answered in just a couple hundred words. There are important issues that focus on educating one's self prior to embarking on such a course of action, particularly the downsides of using steroids – the side effects, the proliferation of fake gear, getting off of them, getting blood work done, etc. And, the fact that buying, selling and transporting them is (in America) still a felony, not to mention banned by all sports federations. All very important salient issues that require a lot of space to do justice.