Research shows that exercising stimulates the immune system to help fight off colds.
If you're looking for a safe way to prevent colds, regular exercise may be the ticket. And you don't have to run a marathon, either. Moderate activity is all you need.
Exercise improves your overall fitness, which can help boost your immune system -- the body's defense against infections.
Some studies show that "moderate-intensity" exercise may cut down the number of colds you get. That type of activity includes things like a 20- to 30-minute walk every day, going to the gym every other day, or biking with your kids a few times a week.