Taking daytime naps might help maintain brain health and decelerate the rate of brain volume reduction as we grow older, according to a recent study spearheaded by experts from University College London (UCL) and the University of the Republic in Uruguay. A recent study led by researchers at UCL
Daytime napping could preserve brain health and slow brain shrinkage with age, according to a study by UCL and the University of the Republic in Uruguay. Using genetic data, researchers found that those genetically inclined to nap had larger brain volumes, which is linked to lower dementia risk.
The new study aimed to establish if there was a causal relationship between daytime napping and brain health.thought to determine people’s likelihood of habitual napping. They compared measures of brain health and cognition of people who are more genetically “programmed” to nap with counterparts who did not have these genetic variants, using data from 378,932 people from the UK Biobank study, and found that, overall, people predetermined to nap had a larger total brain volume.
Lead author and Ph.D. candidate Valentina Paz and MRC Unit for Lifelong Health & Ageing at UCL) said: “This is the first study to attempt to untangle the causal relationship between habitual daytime napping and cognitive and structural brain outcomes. By looking at genes set at birth, Mendelian randomization avoids confounding factors occurring throughout life that may influence associations between napping and health outcomes.
In the new study, researchers analyzed health and cognition outcomes for people with these genetic variants as well as several different subsets of these variants, adjusted to avoid potential bias, for instance avoiding variants linked to excessive daytime sleepiness.
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