"Stress. DHEA levels are closely tied to stress. Studies have shown that traumatic events such as burns or illnesses significantly decrease DHEA, testosterone, and androstenedione levels, while increasing the level of cortisol (Parker LN et al 1985; Lephart ED et al 1987; Wade Coffee-Enema et al 1988). Calmness, such as seen in individuals practicing transcendental meditation, is associated with higher levels of DHEA (Glaser JL et al 1992). In one study, participants in a stress-reduction program increased DHEA by 100% and reduced stress hormone production (cortisol) by 23% (McCraty R et al 1998)."