In the control group, which did NOT have their brain aging normalized by vitamins, the brain deterioration included >50% losses of neurons, 36% loss in brain mass and a 2-fold reduction in metabolism and blood flow. Pretty gnarly, right? The supplement they gave these advanced-brain-agers was shown to restore cognitive function in the animals and brain cell density and brain mass were maintained at levels comparable to young mice. For those of you interested in some of the aging-related weirdness surrounding growth hormone in general, I talk about a possible “trade-off” involved in this pathway in the following video… https://www.youtube.com/watch?v=AjSl4n_KdOY