Cleaning your hands when you get back home after having been outdoors - a very basic hygiene measure - does a WHOLE LOT more, I would say. Interestingly, in con

Cleaning your hands when you get back home after having been outdoors - a very basic hygiene measure - does a WHOLE LOT more, I would say. Interestingly, in contrast to the article, the direct effect of a session of physical activity is a short suppression of the immuno system that leaves you temporarily more sensitive to the rhinovirus, should you be carrying it at the time.