In the study, researchers followed a group of about 1,000 adults of all ages for 12 weeks during the winter and fall of 2008. During that time, people who logged at least 20 minutes of moderate aerobic exercise—such as jogging, biking, or swimming—on five or more days per week were sick with cold or flu symptoms for just five days, on average, compared with about 8.5 days among people who exercised one day per week or less.
What's more, regular exercisers tended to have milder symptoms when they were ill. Compared with the people who barely exercised, those who worked out frequently rated their symptoms about 40percent less severe overall, according to the study, which was published in the British Journal of Sports Medicine. (Symptom severity was gauged with a standard questionnaire.)
Read More:http://pagingdrgupta.blogs.cnn.com/2010/11/01/daily-exercise-helps-keep-the-sniffles-away/
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