Most Common Drug Addictions

According to the Wikipedia, the most common drug addictions are to common and even legal substances like Caffeine, Nicotine and Alcohol. You don't hear people going to a drug rehab facility for being addicted to their regular dose of caffeinated coffee. Alcohol should be best taken in moderation because people who gets addicted to alcohol will likely be advised to go into alcoholism treatment programs. Nicotine in cigarettes, however, pose several health dangers to smokers and non smokers alike.