Monday, 28 May, 2018

Maintaining a daily rhythm is important for mental health, study suggests

Tick tock Study links body clock to mood disorders Disruption of daily rhythms linked to mental health problems
Samantha Long | 16 May, 2018, 21:26

Those with a lower amplitude were found to be at higher risk of mental issues, even when factors such as age, sex, smoking status, educational attainment and childhood trauma were taken into account.

The scientists examined people's circadian rhythms, which control functions such as sleep patterns, immune systems and the release of hormones, to measure daily rest-activity rhythms, also known as relative amplitude.

Body clock rhythms govern fundamental physiological and behavioural functions - from body temperatures to eating habits - in nearly all living beings.

Greater disease risks arising from this disruption have been identified in the brain, pancreas and stress systems.

Researchers of this study analyzed activity data from 91,105 participants (aged, 37-73 years) from the UK Biobank general population cohort to obtain the relative amplitude of the study population (a variable to determine the degree to which circadian rhythms of rest-activity cycles is disrupted). The disruptions were measured by an accelerometer worn on the subjects' wrists, tracking their levels of activity daily. "However, this study used objective device-based measures in over 90,000 participants; and then linked this information to standard measures of mood disorders, subjective well-being, and cognitive function", he added.

Senate panel advances Trump nominee to lead Central Intelligence Agency
But for Warner, and for the Democrats who followed his lead to also announce their support for Haspel on Tuesday, it was enough. The four Democrats supporting Haspel are: Warner, Manchin, Joe Donnelly of IN , and Heidi Heitkamp of North Dakota.

Shifts in energy levels and sleep disturbances are common during clinical depression and episodes of bipolar disorder. It was also associated with greater mood instability (OR, 1.02; 95% CI 1.01-1.04), higher neuroticism scores (incident rate ratio, 1.01; 95% CI 1.01-1.02), more subjective loneliness (OR, 1.09; 95% CI, 1.07-1.11), lower happiness (OR, 0.91; 95% CI, 0.90-0.93), lower health satisfaction (OR, 0.90; 95% CI, 0.89-0.91), and slower reaction times (linear regression coefficient, 1.75; 95% CI, 1.05-2.45). They occur in plants, animals and throughout biology, and are fundamental for maintaining health in humans, particularly mental health and wellbeing.

"These were people who have very poor sleep hygiene, people on their mobile phones at midnight checking Facebook or getting up to make a cup of tea in the middle of the night", author of the study paper Daniel Smith, from the University of Glasgow, is quoted as saying by The Times.

This study was funded by the Lister Institute of Preventive Medicine.

Writing in journal The Lancet Psychiatry, Dr Aiden Doherty, senior research fellow from the University of Oxford's Nuffield Department of Population Health, said a next step could be to carry out further research on younger people.

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