Ashwagandha KSM-66 Extract

Ashwagandha reduces cortisol which actively impairs memory consolidation when chronically elevated. A 2019 Medicine journal double-blind study showed KSM-66 extract at 300mg twice daily significantly improved memory, executive function, and information processing speed over 8 weeks. The effect was strongest in people with high self-reported stress. Ashwagandha does not boost cognition in calm unstressed people but restores cognition degraded by chronic stress.