Pregnenolone

Think of Pregnenolone as the memory hormone. in animal studies it improves memory one hundred times more than even DHEA at the same dose. It enhances memory at least in part because it clarifies thinking and stimulates concentration and prevents memory loss. In addition, pregnenolone at higher doses might reduce fatigue, fight depression, protect the joints, relieve arthritis, and speed healing. Perhaps its most unusual effect is that, according to some patients' experiences, it might intensify the way you see colors.

Produced in the adrenal glands and the brain, pregnenolone is a precursor of all the adrenal and sex hormones. It is the most abundant hormone in the brain, where you'll find two to four times the amount of DHEA, which already has a brain concentration double that of its very high blood concentration. Pregnenolone's concentration in the brain is seventy-five times higher than it the blood.

Without enough pregnenolone, you're sure to have memory problems and poor concentration. You'll be vulnerable to stress and depression and at risk for chronic fatigue and reduced capacity for physical exertion. You might have joint pain and produce excessive urine.

Because pregnenolone feeds production of so many other hormones, if you don't have sufficient levels of the one, you'll create a domino effect with the others - with a host of other symptoms following.