Science glossary film: Addiction

Addiction

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A physical or psychological dependence, leading to symptoms of withdrawal when the substance is removed.

A physical or psychological dependence, leading to symptoms of withdrawal when the substance is removed. An addiction can develop to almost anything, but some substances, such as drugs and alcohol, are much more addictive than others. Addiction affects the reward pathways in the brain, leading to cycles of cravings that can be extremely hard to break.

An addiction can develop to almost anything, but some substances, such as drugs and alcohol, are much more addictive than others. Addiction affects the reward pathways in the brain, leading to cycles of cravings that can be extremely hard to break.

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