Animal studies indicate that pregnenolone is found in the brain in ten-fold larger concentrations than the other stress-related hormones (including DHEA). Pregnenolone is the precursor from which almost all of the other steroid hormones are made; including DHEA, progesterone, testosterone, the estrogens, and cortisol. Despite its powerful metabolites, pregnenolone is acknowledged to be without significant side effects Pregnenolone has been found to:
- Enhance memory
- Make people smarter and happier
- Increase feelings of well-being
- Reduce stress-induced fatigue
It may also:
- Improve immunity
- Reduced symptoms of PMS and menopause
- Repair the covering (myelin) of nerves
Pregnenolone levels decline with age. Pregnenolone seems to have a balancing effect. It is a precursor to many other hormones and may be able to bring the levels of other hormones up or down as needed.