The use of high-potency cannabis leaves a distinct mark on DNA, specifically in people who have experienced psychosis, according to a study published in Molecular Psychiatry on Wednesday.

Without any formal help available, Katherine went searching for support and eventually stumbled upon r/leaves, a Reddit forum dedicated to people who are trying to quit consuming cannabis.

A study released by the Safe Leaf Society this week calls into question the testing capabilities of cannabis testing laboratories after the organization, a new grassroots group of cannabis ...