Science of Addiction

Many drug users become drug addicts, but why is this? What changes to cause a person to become addicted to drugs? Biology - Healthy Living - 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. A Twig Context Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show abstract concepts in action in the real world.