What happens when you are in rehab or at a safe home and not putting drugs and alcohol into your body? You begin eating better. Your body has nutrients to rebuild damaged tissue and normalize nerve function. You begin exercising and you improve flexibility and increase body mass. Your brain begins once again to produce dopamine and other necessary brain chemicals to function normally. As a result, your body’s natural mood modulators kick in and are enhanced by your improved thinking patterns, attitude, and behaviors. When you h ave not used for a period of time, your body physically changes for the better. This is the good news.
The other news you need to be aware of is these changes mean you cannot tolerate the same level of drugs and alcohol you were using when you quit. After a period of abstinence, your body is not the drug and alcohol processing machine it was when you were using heavily. Your body can’t immediately tolerate a return to previous high levels of use.