According to the National Cancer Institute: current information on the possible association between stress and cancer, at least three areas of investigation are being explored?
Virus – related tumors: an indirect relationship between certain types of virus -related tumors (Kaposi Sarcoma, Burkett Lymphoma, and cancer of the liver) and stress has been established. The indirect results from the facts some cancers are triggered by a process that involves certain precursor infections (such as herpes and hepatitis) known to be exacerbated by stress and a weaken immune system.
Cell Processes: the body’s natural neuroendocrine responses has been shown to alter important cell processes that protect against the formation of cancer, such as cell repair and the regulation of cell growth. Age related deficits in protein synthesis and responsiveness of cells to stress, decrease cell – cell communication and inefficient signal transduction may render old cells less able to withstand stress.
Tumor Growth and Spread: the precise biological mechanisms underlying the influence of stress in the growth and spread of cancer. Are not yet understood, however, a link between the effects of stress on the immune system and the growth of some tumors has been well documented. A recent study at the University of Texas, M.D. Anderson Cancer Center in Houston indicates that stress hormones, especially norepinephrine and epinephrine can contribute to tumor progression in patients with ovarian cancer. Maitake Mushroom
Other Factors in the Effect of Stress on the Immune System!!!!! They are numerous and can exacerbate the negative influence of stress on the immune system. Age, nutrition, gender (estrogen), ethnicity, and psychosocial characteristic of the individual can affect white cell circulation in response to stressors. Depression, lack of support, or hostility can cause altered immune cell response to acute stress.
Regardless to it’s origin, psychological stress always leads to a change in white blood cell count at varying degrees depending upon the type and duration of the stressor. Current research shows that longer lasting stressors causes a reduction of immune function and increase over vulnerability to disease. Numerous studies document the immune system suppressors caused by severe stressors can be detrimental.
Such stressor like martial strife, bereavement, long term caregiving, living in unfavorable conditions, and the reaction to life changing events (floods, earthquakes, fires, tornadoes and hurricanes.) Amongst the protective factors physical fitness appears to be a very important positive mediator of white blood cell activity in the presence of psychological stressors….
This all said, I think it would be interesting to compare cancer rates for the most stressful cities in the United States. Based upon divorce rates, commute time, unemployment rate, both violent and property crime also alcohol consumption and those whom smoke. Seeing firsthand “if ” this theory holds true under pressure. While also comparing the cities scoring highest in the fitness index, Top Vegan Friendly least ~ most polluted and State Cancer Rates by types of cancer.