There are supplements/nootropics that people claim to make all sorts of things possible. The research is often lightly corroborated. But, there has been discuss

There are supplements/nootropics that people claim to make all sorts of things possible. The research is often lightly corroborated. But, there has been discussion here about the subject a few times over the years. Valproate, a mood stabilizer, is one such drug, but the study size was small. https://www.newscientist.com/article/dn24831-learning-drugs-reawaken-grown-up-brains-inner-child/ https://www.newscientist.com/article/dn24831-learning-drugs-... I'd be curious what supplements you have in mind, since you included it in your comment.