A recent study has explored the causal relationship between habitual daytime napping and brain health. Using Mendelian randomisation, it revealed a modest causal link between regular napping and larger total brain volume, providing insights into the potential cognitive benefits of daytime napping.
- Causal link to brain volume: The study suggests a modest causal association between habitual daytime napping and a larger total brain volume, which is a critical aspect considering that brain volume often decreases with age
- Potential Protective Role: The findings hint at the potential protective role of daytime napping in preserving brain volume, albeit the associations are modest and further research is needed to explore this in-depth
- Genetic Factors: The study utilised genetic variants to explore these associations, providing a nuanced perspective that considers the genetic predispositions related to daytime napping and brain health
Reference: Paz, Valentina et al. Is there an association between daytime napping, cognitive function, and brain volume? A Mendelian randomization study in the UK Biobank. Sleep Health: Journal of the National Sleep Foundation. June 19, 2023.DOI:https://doi.org/10.1016/j.sleh.2023.05.002