> Although initially it proved difficult to find any cognitive sequelae that correlated with these changes,11 recent animal studies have shown subtle, but lasting, deficits in cognitive behaviorsthat do correlate with the levels of damage to 5-HT systems in the hippocampus.
> In this study, we found an MDMA-related decline in memory performance on a visual paired association test in the first follow-up period in heavy MDMA users,
Living the healthiest lifestyle possible would definitely have a great impact, but that has an impact on anyone who doesn't already live it: Food, nutrition, working out, cardio, meditation, sleep, avoiding negative emotions.
> Although initially it proved difficult to find any cognitive sequelae that correlated with these changes,11 recent animal studies have shown subtle, but lasting, deficits in cognitive behaviorsthat do correlate with the levels of damage to 5-HT systems in the hippocampus.
https://www.frontiersin.org/articles/10.3389/fnins.2015.0044...
> In this study, we found an MDMA-related decline in memory performance on a visual paired association test in the first follow-up period in heavy MDMA users,