These changes in the brain can lead to the damaging habits seen in individuals who use drugs. Drug addiction is also a relapsing illness. Relapse is the return to drug use after an attempt to stop. The course to drug dependency starts with the voluntary act of taking drugs. However gradually, an individual's ability to select not to do so becomes compromised.

This is mostly due to the effects of long-lasting drug direct exposure on brain function. Addiction impacts parts of the brain associated with benefit and motivation, learning and memory, and control over habits. Addiction is an illness that affects both the brain and habits. Yes, but it's not easy. Due to the fact that addiction is a persistent disease, people can't simply stop using drugs for a few days and be cured.

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