Full article: http://www.cbc.ca/health/story/2009/01/12/cold.html
People who suffer interrupted sleep, have trouble nodding off or who snooze less than seven hours a night are at greater risk of colds, suggests a U.S. study.
While the relationship between poor sleep and a poorly-functioning immune system is well-documented, the study is the first evidence that even minor sleep disturbances can influence the body's reaction to cold viruses.
A multi-university study of 153 healthy volunteers showed that participants who slept fewer than seven hours a night were nearly three times as likely to get a cold than those who averaged eight or more hours of sleep.
