With flu season upon us, it's time to boost your immune system and stay healthy. Because no-one likes coughing, sneezing and blowing a red-raw nose, we've hunted down the golden rules for a sniffle-free winter. By Fiona O'Callaghan.
Exercise strengthens the immune system by increasing the production of white blood cells and fight off colds and flu. Nutritionist Susie Burrell says winter is no excuse not to exercise. "We need to embrace the cold weather and even rug up and exercise outdoors like they do in the US and the UK," she says. If you really do struggle to exercise when it's dark and cold outside, go for a jog during your lunch break.
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