Background: Cognitive reserve (CR) refers to the ability of an individual to cope with
brain pathology remaining free of cognitive symptoms. This protective factor has been related to
compensatory and more efficient brain mechanisms involved in resisting brain damage. For its part,
Brain reserve (BR) refers to individual differences in the structural properties of the brain which
could also make us more resilient to suffer from neurodegenerative and mental diseases.
Objective: This review summarizes how this construct, mainly mediated by educational level, occupational
attainment, physical and mental activity, as well as successful social relationships, has
gained scientific attention in the last years with regard to diseases, such as neurodegenerative diseases,
stroke or traumatic brain injury. Nevertheless, although CR has been studied in a large number
of disorders, few researches have addressed the role of this concept in drug addiction.
Methods: We provide a selective overview of recent literature about the role of CR and BR in preventing
substance use onset. Likewise, we will also discuss how variables involved in CR (healthy
leisure, social support or job-related activities, among others) could be trained and included as
complementary activities of substance use disorder treatments.
Results: Evidence about this topic suggests a preventive role of CR and BR on drug use onset and
when drug addiction is established, these factors led to less severe addiction-related problems, as
well as better treatment outcomes.
Conclusion: CR and BR are variables not taken yet into account in drug addiction. However, they
could give us a valuable information about people at risk, as well as patient’s prognosis.