I've heard of allergies to nuts, or bees, or cats, but an allergy to exercise? Come on, that's just an excuse not to work out, right? Unfortunately there is such a thing as an allergy to exercise known as exercise-induced anaphylaxis (EIA). Although it's a pretty rare condition, it still exists for some unlucky few. A person with EIA may feel tired, itchy, or warm within the first few minutes of Read more