Alcohol is more dangerous than illegal drugs such as heroin, ecstasy and crack cocaine, a study released today shows.
Researchers rated alcohol the most dangerous substance based on dangers to the individual and society as a whole.
The work was led by Professor David Nutt, a former British government drugs adviser who was sacked for criticising a government decision to upgrade cannabis from class C to class B.
His team analysed how addictive a drug is and how it harms the human body as well as other factors like environmental and socio-economic costs, such as health care, social services, and prison.
Overall, alcohol outranked all other substances, followed by heroin and crack cocaine. Marijuana, ecstasy and LSD scored far lower.