Results from the Global Drug Survey (GDS) 2017, an independent study of almost 120,000 people over 25 countries, have now been published.
The report finds that despite being legal, alcohol and synthetic cannabis* are the most dangerous of all recreational drugs available, along with methamphetamine (meth).
They were found to be more dangerous than cocaine, LSD, MDMA and speed. Yes, alcohol is worse for you than LSD and cocaine.
Natural drugs, such as magic mushrooms and cannabis were found to be the safest, despite being illegal.
*Commercial production of synthetic cannabis became largely restricted in the UK last year.