Find the real facts fast on how different drugs affect the brain and body:

The Brain and Addiction—Discover what's in your head and how drugs of abuse cause changes in the brain.

Anabolic Steroids—Buying "bulk" is never a good deal when it comes to these substances, which can cause guys to grow breasts and girls to grow beards along with more life-threatening effects.

Ecstasy (MDMA)—This club drug can cause confusion, depression, sleep problems, intense fear and anxiety that can last for days or weeks (in regular drug users) after taking it.

Marijuana—Think everyone does it? And a bunch of leaves must be harmless, right? Check the facts.

Nicotine—It only takes eight seconds to reach the brain and start making changes.

Other Drugs—Looking for information on other drugs not listed here? NIDA has lots of other resources available—just look here.