According to the National Institute on Drug Abuse (NIDA),
addiction is "a chronic, relapsing disease, characterized by compulsive drug seeking and use, and by neurochemical and molecular changes in the brain." Addiction impairs the body's organs and increases the risk of contracting other diseases. The Science catalog focuses on the disease of addiction and the impact of substance use on brain functioning.
This is Your Brain on Heroin
Video by CNN
Sanjay Gupta explains what happens to your brain on opiates, the key ingredient in heroin and other powerful narcotics.
Description from CNN
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