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Abstract

The relationship between handedness and cognitive function has long been a subject of interest in neuroscience and psychology. While the majority of individuals exhibit a preference for using one hand over the other, typically referred to as the dominant hand, a smaller proportion of the population uses their non-dominant hand with regularity for various tasks. Despite the substantial research on hand dominance, the cognitive and mental health implications for individuals who use their non-dominant hand more frequently remain largely unexplored. This article examines the potential cognitive and mental health effects of non-dominant hand use, focusing on the neuropsychological consequences of using the non-dominant hand in daily activities and their possible link to cognitive decline and mental health outcomes. It reviews existing studies, cognitive theories, and neurological perspectives that investigate the role of non-dominant hand use in altering brain function, particularly in relation to cognitive processing, mental health, and neurodegenerative conditions. The discussion includes both the potential benefits and challenges associated with the frequent use of the non-dominant hand, the implications for individuals with mixed-handedness, and how this may contribute to cognitive resilience or decline. The article ultimately underscores the need for further research to better understand how the dynamics of handedness relate to cognitive aging and mental well-being.