Dehydroepiandrosterone is a prohormone we make in the adrenal glands, the brain, the ovaries in women and the testes in men.  DHEA is made from the raw material of cholesterol.  DHEA counters excess cortisol from the adrenal glands.  DHEA levels dwindle with time, and for most people cortisol levels increase.  This imbalance leads to many health problems.  DHEA levels begin to decline steadily in our twenties.  Study after study has demonstrated that maintaining youthful levels of DHEA helps prevent and/or therapeutically addresses cancers, heart disease, type 2 diabetes, depression, Alzheimer's disease, Parkinson's disease, arthritis, lupus, multiple chemical sensitivity, chronic fagitue syndrome, Epstein-Barr virus, herpes, 

When you do an online search on DHEA, the major pages that come up - Mayo, Cleveland Clinic, VeryWell, Healthline, et.c, will include very misleading warnings about "not using if you've had cancer of any kind," especially "hormonal cancers."