“All the teenagers are hearing are the positive messages coming from social media, especially from the US.
“What we’re seeing a lot of in the inpatient wards is young men with psychosis, with psychotic illnesses.
“The drug-induced psychosis would be what we’d see with the cannabis, but if you have a second or third episode of drug-induced psychosis, you’re on a track to develop a condition like schizophrenia, which can be quite chronic and last your whole life.