There are actually different answers to the question of “what is most addictive?” Mainly because that can be measured in different ways. But, regardless of how they’re ranked, the same substances keep cropping up on the list.

Photo Credit: Wikipedia

A 2007 study, which based its scale on three factors (pleasure, psychological dependence, and physical dependence) and scored each drug on a scale from 0-3 (3 being the most addictive), came up with the following rank:

  1. Heroin (3/3)

    Photo Credit: Wikipedia

  2. Cocaine (2.4/3)

    Photo Credit: Wikipedia

  3. Nicotine (2.2/3)

  4. Barbiturates (2/3)

  5. Alcohol (1.9/3)

    Photo Credit: Wikipedia

When a 2010 study looked only at the harm to users and those closest to them, the list came out slightly different, with cocaine at the top, closely followed by heroin and methamphetamines as far as doing harm to the user. Alcohol was added to the list (at the very top) when harm to friends and family was considered.

Photo Credit: Wikipedia

So there you go – make good choices everyone!

h/t: Curiosity

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