germany tobacco allowance Scheurings Tabakladen - Germany | Sites of Memory in Contemporary Europe WWII German 50 Gramm Bag

Ignoring that this paper was specifically about psychosis, not serious mental disorders more generally, perhaps in certain high risk populations the impact of cannabis could be this high, for example in those with a genetic predisposition to psychosis, but its a big leap to conclude that from one study

Neither age nor sex was associated with conversion (HR age = 0.97, 95% CI [0.911.02], P = 0.216

But keep going, the benefits are worth it. - Dr Bhavini Shah The stop smoking timeline Have you ever wondered what happens to your body when you stop smoking

Hookah or waterpipe the smoke from hookah is just as toxic as cigarette smoke

Addiction 108 , 294306 (2013)

However, whether smoking increases the risk of suicide attempts, schizophrenia, bipolar disorder and anxiety warrants future study