The largest genetic study of its kind ever to use accelerometer data to examine how we slumber has uncovered a number of parts of our genetic code that could be responsible for causing poor sleep quality and duration.
The international collaboration, led by the University of Exeter and published in Nature Communications, has found 47 links between our genetic code and the quality, quantity and timing of how we sleep. They include ten new genetic links with sleep duration and 26 with sleep quality.
The Medical Research Council-funded study looked at data from 85,670 participants of UK Biobank and 5,819 individuals from three other studies, who wore accelerometers - wrist-worn devices (similar to a Fitbit) which record activity levels continuously. They wore the accelerometers continuously for seven days, giving more detailed sleep data than previous studies, which have relied on people accurately reporting their own sleep habits.
Among the genomic regions uncovered is a gene called PDE11A. The research team discovered than an uncommon variant of this gene affects not only how long you sleep but your quality of sleep too. The gene has previously been identified as a possible drug target for treatment of people with neuropsychiatric disorders associated with mood stability and social behaviours.
Read more at University of Exeter
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