Wednesday, 23 May, 2018

Your Body Clock Is Linked To Risk Of Developing Mood Disorders

Millennials Disruption to your body clock can heighten the risk of mental health problems
Ben Pena | 16 May, 2018, 22:47

But the age group 37 to 73 is much older than the age at which people often experience mental health problems for the first time, usually in the late teens to early 20s.

This measurement was based on a score ranging between 1 and 0, where scores nearing 1 would correspond most to the "traditional" day/night pattern of activity, and scores nearing the 0 end of the spectrum would correspond to reduced daytime activity, increased night-time activity, or both.

They had also filled in questionnaires about their mood when first recruited between 2006 and 2010, and filled in an online questionnaire about their mental health in 2016. It was also associated with decreased happiness and health satisfaction, and a higher risk of reporting loneliness.

"The next step will be to identify the mechanisms by which genetic and environmental causes of circadian disruption interact to increase an individual's risk of depression and bipolar disorder", said Daniel Smith, a professor of psychiatry and senior author of the study.

Circadian rhythms are variations in physiology and behaviour that recur every 24-hours, such as the sleep-wake cycle and daily patterns of hormone release.

Laura M. Lyall, Ph.D., from the University of Glasgow in the United Kingdom, and colleagues used data from a subset of participants from the U.K. Biobank general population cohort whose activity levels were recorded by a wrist-worn accelerometer. And these results held true when adjusting for age, sex, lifestyle, education, body mass index and childhood trauma, the researchers say.

This is important globally because more and more people are living in urban environments that are known to increase risk of circadian disruption and, by extension, adverse mental health outcomes.

It was carried out by University of Glasgow researchers, who say disruption to normal circadian rhythms, which work on a 24-hour sleep/wake cycle, is associated with a greater susceptibility to mood disorders.

Novartis Top Lawyer Resigns Over Cohen Payments, Calls Contract an 'Error'
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"While our findings can't tell us about the direction of causality, they reinforce the idea that mood disorders are associated with disturbed circadian rhythms, and we provide evidence that altered rest-activity rhythms are also linked to worse subjective well-being and cognitive ability", Lyall said.

A new study revealed that there was a connection between biological clock disruption and increased risk for mental health issues such as depression and bipolar disorder.

They said the findings were "consistent with suggestions that disruption of circadian rhythms is a core feature of mood disorders".

"It's widely known that a good night's sleep is a good thing for well-being and health". It measured people's mood, activity levels and mental health problems at different times, with some mood measurements taken before activity levels and some afterwards.

"So we need to think about ways to help people tune in to their natural rhythms of activity and sleeping more effectively".

But it's not just what you do at night, he said, it's what you do during the day - trying to be active during the day and inactive in darkness, he said.

Some researchers believe modern life may be the reason for this trigger.

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