The strongest human data on psychedelic and cannabis co-use comes from a 2022 prospective survey study by Kuc et al.

But after LSD spread into the larger culture, the U.S. government imposed strict restrictions on it (Dyck, 2008). By 1966, it ...

Since its discovery in the 1940s, LSD has fascinated the scientific world for its profound effects on perception, consciousness, and mental health. In the mid-20th century, researchers explored its ...