Short sleepers '4 times more likely to catch cold'
PEOPLE who do not get enough sleep are four times more likely than their well-rested counterparts to catch a cold, United States researchers said on Monday.
The findings in the journal Sleep are based on a study of 164 volunteers who allowed themselves to be exposed to the cold virus by researchers who were also tracking their sleep habits.
The subjects' sleep habits were measured for one week prior to the beginning of the study, which required them to stay in a hotel.
At the hotel, researchers 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 showed 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.
Those who slept less than five hours were 41/2 times more likely to get sick.