Wednesday, May 15, 2013

What weakens our immune system?



Our immune system function can be weakened (depressed) by many factors.  According to the New World Encyclopedia website, malnutrition including bulimia, alcohol or drug abuse, and cigarette smoke all weaken a person’s immune system. 
A person going through chemotherapy or radiation therapy for cancer would find their immune system weakened by the treatments.  This explains why these people have frequent lab work drawn and their doctors make dosage adjustments based on their lab report.  The lab work drawn is often a complete blood count (CBC) which includes white blood cell counts.
Young children and older people often deal with a decreased immune system.  Stress and depression decrease a person’s immune function.  “Research shows that psychological stress can greatly increase your susceptibility to colds and other viral diseases, namely through an increase in serum corticosteroid levels.”  (New World Encyclopedia, http://www.newworldencyclopedia.org/entry/Immune_system 
Several diseases weaken the immune system.  These include cancer, diabetes mellitus, cystic fibrosis, sickle-cell disease, ulcerative colitis and HIV.

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