Why People Get Sick ?

I'm totally sick.. having sore-throat, cough and cold since day before yesterday. just came to my mind that why people get sick. there are many factors for that such as;

• Unsanitary conditions: massive exposure to germs remains a major factor
• Being poor: poverty degrades life on all fronts, including health.
• High stress: physical and psychological stress damage the immune system.
• Depression and anxiety: untreated psychological disorders weaken resistance to a wide range of diseases, perhaps even cancer
• Lack of coping mechanisms: stress by itself is a negative factor, but the inability to bounce back form it is more important.
• Lack of control, victimization: all stresses become much worse if you feel that you have no control over your own life.
• Inertia, sedentary lifestyle: if you are inactive and have no outside interests, you chance of getting sick rises sharply
• Feeling alone and unloved: emotional deprivation is as unhealthy as deprivation of good food.
• Sudden loss: the sudden loss of a job or spouse, a reversal in finances, or finding yourself in the midst of a war or natural disaster all constitute a state of loss and lead to higher risk of getting sick.
• Growing old: once considered a major cause of illness, aging is now known not to be a direct cause. Being healthy into your 80s should be your expectation, but if you neglect yourself in old age, the body becomes vastly more susceptible to disease.

hmmm.. now we have new thing added "lifestyle disease"...
source :

By Deepak Chopra, M.D. - Posted on Thu, Feb 21, 2008, 2:37 pm PST

http://health.yahoo.com/experts/deepak/2624/why-people-get-sick/

now i'm confused with what to choose for my illness :(