You may find yourself in a discussion with friends this month, trying to decide who is having the worst time of it trying to stay off the booze, off the cigarettes, or off sugar.
Well fear not – science has the answer!
Professor David Nutt is a neuropsychopharmacologist currently at Imperial College London and together with his colleagues asked addiction experts to put their collective heads together to come up with a ‘rational scale to assess the harm of drugs’.
Based on the research, his team have deemed the following to be the most addictive substances on earth.
Nutt’s experts ranked heroin as the most addictive drug, giving it a score of 3 out of a maximum score of 3.
Heroin is an opiate that causes the level of dopamine in the brain’s reward system to increase by up to 200% in experimental animals.
In addition to being arguably the most addictive drug, heroin is dangerous, too, because the dose that can cause death is only five times greater than the dose required for a high.
Source: Cormac Curtis, Extra.ie, 10th January 2019