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Interrupted Sleep Not Good for Your Mood, Study Suggests

👤by HealthDay 0 comments 🕔Monday, November 2nd, 2015

FRIDAY, Oct. 30, 2015 (HealthDay News) -- Waking up several times a night is more likely to put you in a bad mood than a shorter amount of sleep without interruption, a new study finds.

"When your sleep is disrupted throughout the night, you don't have the opportunity to progress through the sleep stages to get the amount of slow-wave sleep that is key to the feeling of restoration," said lead author Patrick Finan, assistant professor of psychiatry and behavioral sciences at Johns Hopkins University School of Medicine in Baltimore.

The study included 62 healthy men and women who had their mood assessed over three consecutive days. Each night the study participants had either a normal bedtime with forced awakenings, or a later bedtime with uninterrupted sleep.

The two groups had similar low levels of positive mood and high levels of negative mood after the first night, but significant differences became apparent after the second night, the investigators found.

Compared to the first day, those in the forced awakenings group had a 31 percent reduction in positive mood on the second day, compared with a 12 percent reduction for those in the later-bedtime group, the findings showed.

There were no significant differences in negative mood between the two groups on any of the three days, which suggests that sleep disturbance is especially harmful to positive mood, according to the study published in the Nov. 1 issue of the journal Sleep.

The study included people with normal sleep patterns, but it's likely the findings also apply to those with insomnia, the researchers said. Waking up multiple times through the night is one of the most common symptoms of insomnia, which affects about 10 percent of American adults.

"Many individuals with insomnia achieve sleep in fits and starts throughout the night, and they don't have the experience of restorative sleep," Finan said in a university news release.

Poor mood is a common symptom of insomnia, Finan noted. He suggested that additional research is needed to learn more about sleep stages in people with insomnia and the role played by a night of restorative sleep.

-- Robert Preidt

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HealthDay provides up to the minute breaking health news. Click here to view this full article from HealthDay.

SOURCE: Johns Hopkins Medicine, news release, Oct. 30, 2015

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