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Lifestyle Health and Wellbeing 10 Dec 2017 Night owls have wide ...

Night owls have wider social networks than morning people: Study

Published Dec 10, 2017, 2:47 pm IST
Updated Dec 10, 2017, 2:47 pm IST
Disruptions in sleep rhythms can indicate several mental disorders.
Disruptions in sleep rhythms can indicate several mental disorders. (Photo: Pixabay)
 Disruptions in sleep rhythms can indicate several mental disorders. (Photo: Pixabay)

Night owls - people who go to sleep late - tend to have wider social networks than morning persons, according to a study which showed that our inherent periods of sleep is linked to how we interact with others.

The study also showed that night owls are more central in their own networks. They stick to their kind and interact with others who stay up late.


"The digital breadcrumbs our daily phone use leaves behind can be used to monitor our behaviour. They provide a picture of our activities, movements, and communication," said Talayeh Aledavood, doctoral researcher at Aalto University in Finland.

Aledavood used anonymous mobile phone data to investigate peoples patterns of behaviour. Times of sleep can be inferred from periods of no smartphone use.

The timing of calls made to friends and the size of our social networks, based on calls, texts, or emails, reveal our social habits.


It is a lot harder to get accurate information like this from surveys, and it is possible to widen the scope of the study up to entire countries, researchers said.

The findings may help understand and treat mental health issues.

Data collected and linked together from mobile devices, active social media use and other digital platforms could work as indicators for different mental disorders. Aledavood has outlined a method to collect data for this purpose.

"There are no clear-cut biomarkers for detecting mental disorders as there are for diabetes or tumours, so you have to find new ways to seek them out," Aledavood said.


"Disruptions in sleep rhythms can indicate several mental disorders, and my plan is to infer these disturbances from data collected from peoples use of digital devices," she said.

The ultimate goal is to develop automated systems that can help patients to seek professional help before their condition turns severe.

Making visualisations from the data collected could assist health care professionals to get an in-depth view of their patients condition.

Aledavood stresses that the privacy and information security of all study participants and particularly patients are crucial.


"The data collection method we have developed has been designed to secure peoples privacy from the get-go. Future research and clinical use of our methods will go through strict ethical evaluation," she said.

We have to be sure that a data collecting method or app is actually beneficial for a patients well-being and treatment," Aledavood said.