Getting at least 4 hours per week of easy to moderate physical activity-such as slow walking or light gardening-may lower the risk of bacterial infections, according to Danish researchers. The study tracked 18,874 adult women and men for one year and found that low leisure-time physical activity cut the likelihood of bacterial infections that require antibiotics by 10 percent and the risk for urinary track infections by up to 32 percent compared with  sedentary behavior. Exercise may help by bolstering the immune system and other research has shown that it may also protect against viral infections such as colds, the research suggests . Note: The study found that vigorous activity was linked to a higher risk compared with being sedentary.

Source:  Consumer Reports on Health  January 2017 Medicine & Science in Sports & Exercise, September 2016