Pregnenoloneis a hormone produced in our bodies from cholesterol. It is a precursor to DHEA and progesterone. Pregnenolone has been linked to stress and fatigue reduction. Pregnenolone has also been found to inhibit GABA receptors, thus increasing mental alertness. Pregnenolone is also thought to stimulate NMDA (N-methyl-D-aspartate) receptors which play a part in memory and learning by regulating synapses. Pregnenolone is a hormone precursor that the body normally manufactures from cholesterol. Called the "mother hormone", pregnenolone converts into other hormones including DHEA, estrogen, testosterone, and progesterone. As with DHEA, pregnenolone levels decline with age. When maintained or restored to youthful levels, pregnenolone helps maintain proper memory and immune functions.Benefit of Pregnenolone:Pregnenolone - enhances the ability to acquire knowledge and motivation.Pregnenolone - reduce high stress induced fatigue.