Home > Fitness > Sports nutrition Updated 26 February 2014 Flu and sport Forget about "sweating out" a cold or flu. The message is simple: do not train if you have the flu. 0 iStock take a Flexibility test » Receive Health tips » Join Health24 on Facebook » Ask Fitness Expert » Jesse Kriel talks rugby and nutrition 44 killer body-weight exercises for women Forget about "sweating out" a cold or flu. The message is simple: do not train if you have the flu. Strain on an infected heart muscle (myocarditis, one of the possible complications of flu) may lead to paralysis of this muscle. There have been cases (in young sportspeople) where the only way to survive after myocarditis was a heart transplant. A gradual return to exercise after recovering from flu is best. You should generally not exercise for at least seven days after recovering. Sportspeople must be well aware that some flu medication might contain banned substances such as pseudo-ephedrine, caffeine and others. With easy access of athletes to sport events in the Northern hemisphere, an athlete might be exposed to a flu virus not yet in South Africa. The best way to prevent flu is to get vaccinated with a flu vaccine relevant to the part of the world that you're heading for. Men genuinely get more ill from flu, possibly because their immune systems react more aggressively. More in Fitness Muscle-building shakes may have less protein than claimed More: FitnessSports nutrition advertisement Read Health24’s Comments Policy Comment on this story 0 comments Comments have been closed for this article. Logout Comment 0 characters remaining Share on Facebook Loading comments... From our sponsors Update on Equazen acquisition by Flordis South Africa 2016 When lice just keep coming back! Cipla Community Hero: Ana Rocha Innovation in Diabetes Care Live healthier Did you know? » Allergies less common in kids who suck their thumbs Two-dose chickenpox shot gets the job done What nits and lice look like in your hair 5 diseases your child can pick up at school School is a place for learning, but it also creates the perfect environment for an infectious disease to spread like wildfire. Healthy legs » The results you should know from the Healthy Legs Survey Could your job be causing varicose veins? Varicose veins? Don't do these exercises 5 stages of vein disease Weak or damaged valves in the veins can cause varicose veins.