DHEA has been an enigma to the public and to most physicians. I never once heard about this hormone in four years of medical school, seven years of residency or in any endocrinology lecture I heard in my training. This is why when I mention it to my patients, I am not surprised that they have never heard about it. The general public did not learn about DHEA until 1996, when its benefits were mentioned in the media and several popular books that showed up on daytime TV shows. Most in mainstream medicine continued to ignore the science these books contained because they were not found in the usual ways via journals and continuing education classes. You actually had to be on the lookout for this information if you wanted to help your patients directly. With a busy medical practice this is no easy task, to be sure. DHEA became credible to the medical establishment when the New York Academy of Sciences published a book called DHEA and Aging. That book provided scientific validation for the many life-extending effects of DHEA.