The different drug and alcohol abuse rehabilitation services which are offered to drug and alcohol addicted persons in Cambridge can differ in a lot of various ways. Some alcohol and drug abuse rehabilitation services are offered in a residential or inpatient location, where individuals reside for the duration of their rehabilitation which provides a more therapeutic treatment setting. Others provide substance abuse rehab programs on an outpatient basis which allows for more versatility, though outpatient facilities may not be an appropriate drug and alcohol abuse treatment service for individuals in Cambridge who are struggling with long term addiction issues. Whether inpatient or outpatient drug and alcohol abuse rehabilitation services are selected, there are also different lengths of time that people will be asked to stay in the alcohol and drug rehabilitation program. For instance, some short-term programs offer programs for 30 days or less, whereas long-term programs will require at least a 3 month stay.