For those that like more detail
Exercise and Sport Sciences Reviews noted:
"Prolonged intense exercise causes immunosuppression, whereas moderate-intensity exercise improves immune function and potentially reduces risk and severity of respiratory viral infections."
Dr Mercola said “Intensive exercise boosts production of cortisol, a stress hormone which inhibits the activity of natural killer cells—a type of white blood cell that attacks and rids your body of viral agents. This is why running a marathon can actually increase your chances of getting sick shortly thereafter. In fact, elite endurance athletes can suffer anywhere from two to six times as many upper respiratory infections during a year, compared to average, active individuals.”
When is it okay to exercise when you're sick?
One of the interesting points for me from Dr Mercola was that if your symptoms are above your neck, it is usually okay to exercise (although at a lower intensity as mentioned above). These symptoms may be:
- Runny nose
- Sore throat
- Headache, nasal congestion
When shouldn’t you exercise when you're sick?
According to Dr Mercola, if your symptoms are primarily below your neck, exercise should generally be avoided. These symptoms may be:
- Widespread body aches and muscle aches
- Vomiting, upset stomach and/or stomach cramps
- Coughing or chest congestion
Of course all of this information is very generalized. The key to this is no matter what your symptoms are, you need to be very careful and listen to your body. If you don’t feel up to exercising, then don’t, get some rest instead. If symptoms persist, please seek medical advice.
If you want more information, please read the full article. The link is below.