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Prof. Nutt in the UK did some research on this, if you're interested in an objective analysis of this subject. http://www.economist.com/blogs/dailychart/2010/1

• jayajay 10y ago
  I am skeptical of the 16 metrics used to rank harm on a 0 to 100 scale.
  • Symbiote 10y ago
    His research was sufficiently well regarded, that when the British government sacked him from their advisory panel, all the other scientists resigned in protest https://en.wikipedia.org/wiki/David_Nutt#Government_positions https://en.wikipedia.org/wiki/David_Nutt#Government_position...