Biological model of the dominant approaches to understanding addiction and drug abuse is also known as the disease model. Its a biological system that mirrors a disease or shows same disease processes.
According to disease model theory of addiction " identification of drug seeking behavior as a compulsive rather than a conscious choice due to chemical changes in brain which happen with regular substances abuses.
There are three model of addiction - genetic theories , exposure theories ( includes biological and conditioning) and adaptation theories. This disease model describes an addiction as a disease with biological, neurological , genetic and environment sources of origin.
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