10 Lung Infection Symptoms
Symptom #7: Fatigue
Your body requires energy to carry out its many functions including eating, working and exercising. To produce this energy, the body requires glucose and oxygen. Of course, glucose comes from food while oxygen gets into the body through breathing. However, lung infections usually lead to reduced oxygen intake. Inadequate oxygen means that the body produces less energy than it requires.
A significant amount of this energy is used by the immune system to fight the infection while the rest is used for survival. This leaves little for other activities. Additionally, people with lung infections may have poor appetite such that they eat little food to provide adequate amounts of glucose and other nutrients. All this can lead to fatigue, which is another common lung infection symptom.
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