There are several different types of drug and alcohol abuse rehabilitation centers in Harvard which drug and alcohol addicted individuals can get help from. As an example, there are alcohol and drug abuse rehabilitation centers in the Harvard area which cater to somebody with a short background of drug and alcohol abuse and might benefit from a short term drug and alcohol treatment program which will require the individual to remain in rehab for about a month or less. There are also much more extensive and long term drug and alcohol abuse rehabilitation centers in Harvard which involve a stay of 3 months or longer, based off of the individual's history of alcohol and drug abuse and other issues which may include co-occurring mental health issues. Drug and alcohol abuse rehab services can be completed on an outpatient basis or an inpatient basis, with inpatient alcohol and drug abuse treatment programs supplying significantly better success rates as a result of a higher quality of rehabilitation facility.