It is not uncommon for men and women who have problems with a psychological issue to also be plagued by a co-occurring alcohol and drug abuse issue. In truth, it is more prevalent than one would think and many individuals presently in drug treatment centers in Friesland may have mental health disorders which have just simply been undiagnosed. Rehab professionals at successful drug rehabilitation programs in Friesland know how to spot persons with co-occurring psychological and drug and alcohol abuse issues so that both concerns can be simultaneously addressed while the person is in rehabilitation. Simply because both must be resolved, the individual must remain in rehabilitation until they are psychologically stable, not just abstinent.