LSD is just one mind-altering substance in a class of medicines called hallucinogens, which cause persons to own hallucinations—matters that somebody sees, hears or feels that seem like actual but are in reality produced from the mind. The usage of LSD outside a medical setting may be hazardous. Mood shifts, https://www.tumblr.com/lsdvibes/757469329295048704/historyoflsd?source=share