Insufficient Sleep Is Dangerous – Experts Warns


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17-Year-Old Girl Who Sleeps For Two Months At Stretch

Lack of sleep can be harmful to bone health? New research in postmenopausal women has found that those who slept for no longer than 5 hours per night were most likely to have lower bone mineral density (BMD) and osteoporosis. New research finds a link between sleep loss and bone density. 

A team from the University at Buffalo, NY, led the study of 11,084 postmenopausal women, all of whom were participants in the Women’s Health Initiative.

The investigation follows an earlier one in which the team had linked short sleep to a higher likelihood of bone fracture in women.

“Our study suggests that sleep may negatively impact bone health, adding to the list of the negative health impacts of poor sleep,” says lead study author Heather M. Ochs-Balcom, Ph.D., an associate professor of epidemiology and environmental health at the University at Buffalo School of Public Health and Health Professions.

“I hope,” she adds, “that it can also serve as a reminder to strive for the recommended 7 or more hours of sleep per night for our physical and mental health.” Bone is living tissue that undergoes continuous formation and resorption.

The process, known as bone remodelling, removes old bone tissue and replaces it with new bone tissue. “If you are sleeping less, one possible explanation is that bone remodelling isn’t happening properly,” Ochs-Balcom explains.

In the new study, the team found that compared with women who slept more, those who reported getting only up to 5 hours of sleep per night had significantly lower values in four measures of BMD. The four BMD measures were of the whole body, the hip, the neck, and the spine.

The researchers note that the lower BMD measures among the short sleep group were equivalent to being 1 year older.

The results were independent of other factors that could potentially influence them, such as age, race, the effects of menopause, smoking status, alcohol use, body mass index (BMI), use of sleeping pills, exercise, and type of bone density scanner.

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The researchers emphasize that there is a positive message in these findings: Sleep, as with diet and exercise, is often something that people can work to change.

“It’s important to eat healthy and physical activity is important for bone health.

That’s the exciting part of this story — most of us have control over when we turn off the lights when we put the phone down.”

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