Psychedelics or serotonergic hallucinogens are a group of substances that have in frequent the agonism for serotonergic 5HT2A receptors as their key mechanism of action.1 These substances are available in nature (including psilocybin, present in mushrooms in the genus Psilocybe and plenty of others; dimethyltryptamine/DMT, existing during the botanical preparations https://thebookmarklist.com/story17704166/the-basic-principles-of-lsd-effects-on-the-brain