Crack cocaine, like many other illegal drugs, leads to addiction, death, increased crime rates and imprisonment. But crack is also in a class of its own: This drug targets the inner city almost exclusively and carries with it addiction rates unmatched by most other drugs of its kind.
Smoking or chewing tobacco makes many people feel good, even mildly euphoric. It's the nicotine that produces the buzz. Find out how nicotine affects the human body and what makes it so addictive.