Drug rehabilitation services can be quite a turning point for a person who may have tried to put an end to substance abuse independently, but did not have success remaining abstinent. The reason individuals require drug rehabilitation services is simply because staying sober isn't just dependent on overcoming immediate physical problems. Those who avail themselves of drug rehabilitation services can engage in a number of treatment methods that helps them resolve issues in their lives that are much more environmental, emotional and in many cases psychological. For instance, studies show that substance abuse can often be caused by purely environmental factors, for example turmoil, failure, or losses in one's life. There can be a co-occurring psychological disorder which needs to be addressed simultaneously in drug rehabilitation services, and if not addressed most individuals will relapse in short order. While usually it takes a lot of time and energy to fully benefit from drug rehabilitation services, people who only detox and receive no further services fare equally well as somebody who took part in no drug rehabilitation services. Long-term inpatient or residential drug rehabilitation services are the most optimum drug and alcohol rehabilitation facilities for those hoping to have a full recovery and also be able to have a new beginning.