I know, I know. It does sound like the lamest excuse ever to skip a sweat session. However, according to the American Academy of Allergy, Asthma and Immunology, exercise may produce symptoms similar to an allergic reaction in some people. This condition is called exercise-induced anaphylaxis (EIA), which is a form of physical allergy with symptoms ranging from mild skin rashes to severe systemic manifestations. Hey, calm down the hypochondriac in you, because EIA is not at all common.
Experts state that EIA is not considered a true allergy to exercise. It may not even occur at every workout session. Yet, exercise may lead to anaphylaxis, especially when combined with certain foods (most common trigger foods are wheat, celery, tomato, seafood, and peanuts) or environmental factors such as pollen, high heat, extreme cold, or humidity. EIA is more likely to occur during more intense workout sessions, but even mild physical activities (such as gardening) may trigger it in susceptible individuals. This condition has been seen more often in young adults (between their 20s and 30s) and is most likely to start in the first 30 minutes of the activity.
The most common symptoms are flushing, itching, hives, skin rashes, trouble breathing, nausea, and dizziness. Life-threatening episodes, on the other hand, are rare. If you notice any of these symptoms, stop exercising immediately and look for professional help. Resist the urge to self-diagnose, though. The good news is that even if you have a positive diagnose for EIA, you may be able to continue to exercise. The best approach is to work with a qualified allergist in order to create an appropriate strategy for your case.
References
“Anaphylaxis: Tips to Remember.” American Academy of Allergy, Asthma and Immunology. Available at http://www.aaaai.org/conditions-and-treatments/library/at-a-glance/anaphylaxis.aspx.html. Accessed in April 2012.
Hosey, R. et al. “Exercise-Induced Anaphylaxis and Urticaria.” American Academy of Family Physicians. Available at http://www.aafp.org/afp/2001/1015/p1367.html. Accessed in April 2012.
Vogel, A. “Could Your Client Really Be Allergic to Exercise?” ACE Certified News. Available at http://www.acefitness.org/certifiednewsarticle/2471/could-your-client-really-be-allergic-to-exercise/.html. Accessed in April 2012.