Dave breaks down an FDA-cleared inhaled Alzheimer's trial, a breakthrough in adult brain self-repair, a wool-derived alternative to collagen for bone regeneration, promising oral GLP-1 weight loss data, why the standard exercise guidelines fall far short of real heart protection, and the newly clarified science behind IV vitamin C's anti-cancer effect, closing with what Linus Pauling's fifty-year vindication teaches about revisiting the ideas you gave up on too soon.