why are drug addiction simple explanation
Addiction is defined as a chronic, relapsing brain disease that is characterized by compulsive drug seeking and use, despite harmful consequences.It is considered a brain disease because drugs change the brain; they change its structure and how it works.ddiction occurs when a person cannot control the impulse to use drugs even when there are negative consequencesâthe defining characteristic of addiction. These behavioral changes are also accompanied by changes in brain functioning, especially in the brainâs natural inhibition and reward centers.