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What is the ? A is a contagious viral infection of the upper respiratory tract. The symptom of a are stuffy nose, congestion, runny nose, fever, headache, cough, sore throat or fatigue in the body. A could have one or a few of these symptoms. What are the cause ....

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.... stress tips the infected person over into illness. In his study of 72 married white men for a period of 12 weeks, in which they kept daily diaries of their stress. Researchers then measured the subjects' saliva for a substance called secretary immunoglbulin-A antibody, the less they had of it, the more likely it was that the subject would come down with the cold. This may be true according with Dr. Stone, but an argument made by Dr. Gwaltney, "You see, you could have a ton of immunoglobulin-A and you could still get sick. If you don't have a specific antibody for the cold virus that's after you, you're still a goner." Acute stress is one of the most f ....