Drug rehabilitation (rehab) is a medical and psychotherapy treatment for people who are addicted to harmful substances including alcohol, prescription medicines, and illegal drugs like cannabis. Rehab is a type of treatment that aims to help you enhance your ability and function in everyday tasks. Cognitive (thinking and learning) abilities, mental abilities , and physical abilities are all possible. A drug rehabilitation centre is a clinic where people who are addicted to drugs or alcohol receive expert medical care and support in order to reclaim their personal and social well-being and lifestyle. Addiction is a difficult but treatable disorder. Continuous substance abuse alters brain structure and function, resulting in dependency. Drug addicts are more likely to relapse after a long period of abstinence or cessation because brain function lasts longer. When a person does not receive the medicine, they may have withdrawal symptoms. These signs and symptoms might be danger