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Many drug users become drug addicts, but why is this? What changes to cause a person to become addicted to drugs?Key facts
- Millions of people are addicted to drugs worldwide.
- Drugs target the reward center of the brain.
- Long-term drug use can cause the brain to become physically dependent.
- Dopamine is a chemical messenger that creates the sensation of pleasure.
Transcript
From cannabis to cocaine, cigarettes to alcohol.
Millions of people across the world are addicted to drugs.
But how does substance use become substance addiction?
Brain Response
Drugs can be powerfully addictive, because they target the reward centre in the brain.
Dr Nora Volkow, Brookhaven National Laboratory, USA – "The reward centre ensures that an …
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