YOU’VE PROBABLY HEARD about all the ways that shrooms (or, more specifically, their active hallucinogenic compound, psilocybin) are mental-health cure-alls. Depression, PTSD, addiction: you name it and some wellness guru has likely told you that the right kind of mushroom can fix it. In the US, the people of Oregon voted last year to allow the therapeutic use of psilocybin in clinical settings.

It sounds exciting, but I’ve been sceptical,