The nucleus is made up of deoxyribonucleic acid, or DNA, and it decides how the cell is made, and how the cell works. It is the manager of the cell in the same way that the brain manages your body. The cell wall is an actively selective membrane that chooses what comes into and out of the cell. People who need drug treatment have had their brain hijacked by a chemical. They lose the choice to use because using is the only way that they feel normal.
Drug treatment teaches people how to feel normal without using drugs.
THE CELL Drugs pass through the cell wall in a variety of ways and influence how the cell operates. This is a very involved process, and we do not know exactly what each drug does. What we do know, however, is important, and you must understand some of this to understand addiction. Alcohol is a drug. One of its effects is it dehydrates protoplasm.