
The article “Phys Ed: Does Exercise Boost Immunity?” written by Gretchen Reynolds focuses on the recent results of a study that investigated the impact of exercise on sickness. Several studies have been conducted using mouse trials which have concluded that intense exercise not only causes the subject to be more prone to sickness but also have more harmful and prolonged effects from the viruses. The reasons for these results have not been determined but many theories involve the relationship of exercise and the proportions of two helper immune cells.
The article gives us a lot of information to digest since exercise has always been seen as an activity without fault. The health benefits of exercise have been documented for years but these recent findings showing its faults to viruses especially coming into flu season, the occurrence of H1N1, and the start of marathons. Runners all around the world are voluntarily risking more harmful and serious sickness in these competitions. Some of the studies have shown however that moderate exercise will actually increase the immune system against the effects of viruses. This information creates some controversy with physical education. How do we monitor or determine the levels our children should be exercising at during these times of sickness? Education and physical activity are required to maintain a healthy balance in childhood. Where do we draw the line between education and exercise verses health risk during flu season.


