Exercising while sick is not always ill-advised. It might not be easy but going for a run when your symptoms are situated above the neck and you're fever-free may actually make you feel a little better. However, if you have a fever, you need to cool your jets. "If you're febrile, if you're over 100 degrees – definitely over 100.5 or so – you should not work out. You put yourself at some risk for viral myocarditis," says Kaeding. Viral myocarditis is inflammation of the heart muscle and can be fatal. Evidence suggests that exercising while feverish increases a person's risk of developing this dangerous disorder as well as dehydration and overheating.
Credit: Getty Images
Powered By ZergNet
Action-Packed Summer Trips
Race Dune Buggies, Explore Italy, Bike Yellowstone
Plus: Fighting Poachers and Oil Companies in Congo
ON NEWSSTANDS NOW
Nick Offerman's Life Advice
Sign up to receive the Men’s Journal newsletter and special offers from MJ and its marketing partners.