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mood disorders

Disrupted sleep cycles linked with mood disorders

LONDON: People who have disrupted sleep cycles or less variation in their activity levels around the clock may be more likely to have depression, bipolar disorders and other mental health issues, a UK study suggests. Past research has found that people with a circadian rhythm, or biological clock, that’s out of step with their daily routines - like split shift or night shift workers - can have an increased risk of emotional, behavioral and psychological problems. The current study examined 24-hour activity levels for…

Study links body clock to mood disorders

PARIS: Messing with the natural rhythm of one's internal clock may boost the risk of developing mood problems ranging from garden-variety loneliness to severe depression and bipolar disorder, researchers said Wednesday. The largest study of its kind, involving more than 91,000 people, also linked interference with the body's "circadian rhythm" to a decline in cognitive functions such as memory and attention span. The brain's hard-wired circadian timekeeper governs day-night cycles, influencing sleep patterns, the…