Short Sleep Results In Aging Brain

By on July 1, 2014

According to a new study evidence had been found brain ages faster in older adults who sleep for less time.

This study was done by Duke-NUS Graduate Medical School Singapore (Duke-NUS) and it was lead by Dr June Lo. Dr June Lo is the lead author of this study and also Duke-NUS Research Fellow.

Short Sleep Results In Aging BrainFindings of this study are relevant in context to the rapidly aging society of Singapore. And also raised the necessity of future work related to sleep loss and its effect on decline of cognitive, which even includes dementia.

The impact of duration of sleep on cognitive functioning of older adults is already explained by previous studies. The marker for cognitive decline and for development of neurodegenerative diseases that includes Alzheimer’s is faster brain ventricle enlargement.

This study has studies the effect of sleep loss on this marker, which has never been measured till now.

For this study, data of 66 older Chinese adults, who are taken from the Singapore-Longitudinal Aging Brain Study was examined. Brain volume and neuropsychological assessments testing cognitive function was measured using MRI brain scans for every two years.

The sleep duration of these adults is also been recorded through a questionnaire. Faster ventricle enlargement and decline in cognitive performance was observed in these adult, who slept for fewer hours in a day.

Dr June Lo said that the finding of the study relate short sleep to a marker of brain aging. Professor Michael Chee, who is senior author and Director of the Centre for Cognitive Neuroscience at Duke-NUS said that other studies suggesting that 7 hours of sleep in adults is good for optimal performance on computer based cognitive tests.

And also said that in coming years, they are even planning to study what is good for cardio-metabolic and long term brain health.

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