These changes in the brain can cause the damaging behaviors seen in people who utilize drugs. Drug addiction is also a relapsing disease. Regression is the go back to drug usage after an attempt to stop. The course to drug addiction starts with the voluntary act of taking drugs. But with time, an individual's ability to choose not to do so ends up being compromised.

This is mostly due to the results of long-lasting drug exposure on brain function. Dependency affects parts of the brain associated with benefit and motivation, finding out and memory, and control over behavior. Addiction is a disease that impacts both the brain and habits. Yes, but it's not easy. Because addiction is a persistent disease, people can't just stop using drugs for a few days and be cured.

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