Q7\

Training in the great outdoors this season can B boost your immune system by… Myth

B Far from catching your death, run fast enough and you could outpace winter illness altogether. According to a study by the Mayo Foundation, regular outdoor exercise in the winter reduces your flu susceptibility by 20-30%, while other studies suggest cold-weather training may trigger an adaptive response in the body, strengthening your immunity over time. Good news in the long run.