What exactly are benefits of dhea?

Www.mayoclinic: Dhea has been advocated to improve libido(modest studies) general health, grow hair. As per mayo clinic...There is sufficient evidence supporting the use of dhea in the treatment of adrenal insufficiency, depression, induction of labor, and systemic lupus erythematosus. Theoretically dhea may increase the risk of prostate, breast, ovarian, and other hormone-sensitive cancers http://www.Mayoclinic.

Increases hormones: DHEA is a precursor for androstenedione which is turn is the precursor for andorgens in men and estrogens in women. Taking it insures that your body as an ample supply of the precursor for your sex's sex hormones.