Photo: regionews
A brief daily nap may slow brain ageing and improve its functions, according to new findings by researchers from University College London (UCL) and the University of the Republic in Uruguay, RegioNews reports.
Scientists found that regular 15–30 minute naps are associated with larger brain volume — a marker linked to a lower risk of dementia and better overall neurological health. Short daytime rest was also found to reduce stress and boost productivity.
The team analysed data from more than 35,000 participants in the UK Biobank, using Mendelian randomisation to assess the genetic predisposition to napping. Those genetically inclined to nap had brains that appeared 2.6–6.5 years “younger” than those of non-nappers, suggesting a potential causal link between daytime napping and preserved brain structure.
While the study did not identify significant effects on memory, reaction speed, or visual processing, previous research indicates that short naps can offer short-term cognitive benefits. The greatest positive effect comes from naps lasting around 30 minutes, which rarely disrupt nighttime sleep.
This is the first large-scale study to link daytime napping habits to brain structure. The researchers note that further studies across diverse populations are needed, but the findings highlight the potential long-term benefits of brief daytime rest for brain health.
Earlier, scientists reported a breakthrough in treating type 1 diabetes — a new method that may help patients restore their own insulin production and reduce dependence on daily injections.
