@CNN: The five most addictive substances in the world:
1. Heroin
2. Cocaine
3. Nicotine
4. Barbiturates (“downers”)
5. Alcohol
https://t.co/mk5Xo7F0hi
The five most addictive substances in the world:
1. Heroin
2. Cocaine
3. Nicotine
4. Barbiturates ("downers")
5. Alcoholhttps://t.co/mk5Xo7F0hi— CNN (@CNN) January 6, 2019