Research suggests that 30-day rehab programs can be effective in helping individuals overcome addiction, but the success of the program depends on several factors, including the severity of the addiction, the individual’s level of commitment to the program, and the availability of follow-up care and support. In general, longer rehab programs, such as 60 or 90 days, may have higher success rates, as they allow for more time to address underlying issues and develop healthy coping strategies. However, any rehab program can be effective if it is tailored to meet the individual’s unique needs and includes evidence-based treatments and ongoing support.