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People Who Do Not Get Enough Sleep are Four Times More Likely to Catch a Cold

by Dr. Trupti Shirole on  September 1, 2015 at 11:12 AM Research News   - G J E 4
A 2013 survey by the National Sleep Foundation has revealed that about one in five Americans gets less than six hours of sleep on the average work night. Previous studies have linked lack of sleep to chronic illness, premature death, susceptibility to diseases, car crashes, industrial disasters and medical errors. US researchers have now suggested that people who do not get enough sleep are four times more likely than their well-rested counterparts to catch a cold.
 People Who Do Not Get Enough Sleep are Four Times More Likely to Catch a Cold
People Who Do Not Get Enough Sleep are Four Times More Likely to Catch a Cold
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For the study, researchers followed 164 volunteers who allowed themselves to be exposed to the cold virus by the scientists who were also tracking their sleep habits. First, the study subjects underwent health screenings and completed questionnaires so researchers could understand factors such as stress, temperament, and alcohol and cigarette use. The study participants sleep habits were measured for one week prior to the beginning of the study, which required them to stay in a hotel room in the Pittsburgh, Pennsylvania area.

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Once sequestered in the hotel, research team administered the cold virus via nasal drops and monitored the volunteers for a week, collecting daily mucus samples to see if the virus had taken hold. The results suggested that those who had slept less than six hours a night during the week leading up to the study were 4.2 times more likely to catch the cold compared to those who got more than seven hours of sleep. But, people who slept less than five hours were 4.5 times more likely to get sick.

Aric Prather, assistant professor of psychiatry at the University of California, San Francisco, and lead author of the study, said, "Short sleep was more important than any other factor in predicting subjects' likelihood of catching cold. It didn't matter how old people were, their stress levels, their race, education or income. It didn't matter if they were a smoker. With all those things taken into account, statistically sleep still carried the day."

The findings are published in Sleep.

Source: AFP
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