Active People Suffer Fewer Colds

Other studies have clearly shown that regular exercise will help prevent catching colds in the first place. For example, one 2002 study found that those who exercised regularly suffered 20-30 percent fewer coldsii. Other studies demonstrate an even greater impact. According to a 2006 trial, regular, moderate exercise reduced the risk of colds in postmenopausal womeniii by half. The year-long study examined 115 sedentary, overweight, postmenopausal women, none of whom smoked or took hormone-replacement therapy. Half were assigned to an aerobic exercise group and the other half attended a weekly stretching class only. The patients in the exercise group were asked to work out about 45 minutes a day, five days a week, but they were only able to reach the 30-minute mark per day, with brisk walking accounting for the bulk of their body work. By the end of the study, the women who performed aerobic exercises on a weekly basis had half the risk of colds of those who did stretching only. The ability of moderate exercise to ward off colds also seemed to increase the longer it was used. In the final three months of the study, the stretching-only group had a three-fold higher risk of colds than the exercisers. The fact that the enhanced immunity was strongest in the final quarter of the year-long trial suggests it is important to stick with exercise long term to get the full effects. I've often said it's crucial to treat exercise like a drug that must be properly prescribed, monitored and maintained for you to enjoy the most benefits. That also means that you can't bank exercise either; it's not like money. Even if you were a world-class athlete, in about two weeks of not exercising you will tend to start to experience deconditioning.

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