Link :
http://uk.news.yahoo.com/041001/323/f3qqa.html
WASHINGTON (AFP) - A study of 15,555 men and women in five Scandinavian countries found that people who smoke are more likely to snore, even if they have quit smoking, according to results published.
The study, published in the October edition of the American Journal of Respiratory and Critical Care, found that tobacco use contributed 17.1 percent to the risk of frequent snoring in people 25 to 54 years of age, compared to 4.3 percent for obesity and 2.2 percent for passive smoking.
According to researchers, this is the first time that passive smoke was linked to increased risk of snoring.
The research was done on people in Denmark, Norway, Sweden, Estonia and Iceland.