Does cannabis really trigger schizophrenia? Is it true that cannabis is a non-addictive drug? What's the difference between hash and skunk? According to the UN's estimate, 160 million people around the world use cannabis; that's roughly 2.5 per cent of the world population. Despite these figures, most people have a profound lack of knowledge about cannabis, made all the more dangerous by the changing nature of the drug itself, with much higher levels of potency being seen today than ever before. What You Need to Know About Cannabis offers accessible, accurate and objective information about the drug, allowing the reader draw their own conclusion. The book demystifies the latest research about the effects of cannabis, particularly in relation to mental health issues. Suitable for use as a resource for teachers, professionals, parents and young people who want to know the facts about cannabis, this book tells you what you need to know about this controversial drug.