Slideshow: What Does Alcohol Do to Your Body?
A few seconds after your first sip, alcohol starts to change how your body works. After years of heavy drinking, those changes add up.
Slideshow: Could You Be Hooked? Surprising Addictions
Cell phones, social media, chocolate, a runner's high -- what is it you feel like you're addicted to? WebMD finds out why we feel we can't live without these things.
Slideshow: Commonly Abused Drugs
This WebMD slideshow features pictures of commonly abused prescription and over-the-counter drugs, including depressants, pain relievers, and stimulants.