Cognitive insight is the ability to monitor and correct one's own erroneous convictions. The Beck Cognitive Insight Scale (BCIS) assesses two sub-dimensions of cognitive insight: self-reflectiveness (SR), which is the attitude of questioning one's own judgments; and self-certainty (SC), which is the unwillingness to modify and correct one's own convictions. There is little information about cognitive insight in healthy participants (HP). Here we investigated the socio-demographic and neuropsychological correlates of cognitive insight in 50 HP who were administered the BCIS and a comprehensive neuropsychological battery. The global BCIS R-C index correlated positively with age and WCST perseverative errors. SR correlated positively with age. These data support the hypothesis that a less self-reflective and more self-confident style is cognitively functional in HP. Thus, what has been found malfunctioning in mental illnesses is adaptive in HP. Future studies should consider a wider range of factors that might affect this complex construct. Copyright © 2011 John Wiley & Sons, Ltd.