Allergies and the Immune Response
The immune system, made up of the thymus, lymph nodes, spleen, tonsils, and white blood cells works as a network of chemical signals day in and day out as the body's own natural defense system against a number of pathogenic substances. Ranging from a variety of bacteria, parasites, and viruses, the body's immune system kills and destroys the majority of these potentially harmful pathogens. However, as efficient and effective as the immune system is, in some instances it doesn't always work properly resulting in flaws that can become quite troublesome for many around the world. One of these problems may not come from the threat of harmful bacteria or viruses, but rather from things that many people overlook and dismiss as a part of everyday life. The problems are allergies and allergic reactions; These range from seasonal allergies, caused by pollens, dust, rag weeds and animal hairs, to some of the more severe types caused by a variety of......
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Approximate Word Count: 5870
Approximate Pages: 23 (260 words per double-spaced page) |