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Why don't I always catch a cold?

  1. Oct 21, 2012 #1
    Can I assume that even though I am a bit of a germ phobe that my body is on a daily basis exposed to cold germs? I try to be careful about keeping my hands clean and not sticking them in the wrong places (mouth, nose, eyes ?).

    If I am constantly exposed to cold germs and I don't always get a cold can I assume that normally my immune system can fight off cold germs?

    If I eat well, sleep well, and have a job that requires the expenditure of a moderate amount of energy can I assume that my immune system is best prepared to defeat cold germs that might get into me?

    If on the other hand my diet is not optimal, I don't sleep enough or don't sleep well, and I work to exhaustion that my immune system is then not at peak performance and not best prepared to fight off cold germs?

    If a cold germ manages to infect someone can I assume that there can be a spectrum of outcomes, from no signs of sickness to death from complications?

    Thank you for any help or suggestions. Getting over a cold and pissed at getting sick.
     
  2. jcsd
  3. Oct 21, 2012 #2

    Drakkith

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    Staff: Mentor

    I'd say you hit the nail on the head with every point. Normally your body does just fine even though it is surrounded by viruses and bacteria. Sometimes, for a variety of reasons, you just can't fight off the germ quick enough to avoid getting symptoms and catching a cold. IE normally if a few bacteria/viruses get into you they are eliminated quickly, but sometimes they aren't and are able to multiply and cause symptoms.
     
  4. Oct 23, 2012 #3
    Also the common cold is not just one disease it's actually caused by many different combinations of viruses. As time goes on and you catch a cold your body becomes immune to that strain of the common cold and as you get older you are less likely to become infected with the common cold.

    http://en.wikipedia.org/wiki/Common_cold
     
  5. Oct 23, 2012 #4
    I'm not an expert, but I've always held the view that it's not usually the presence of a dangerous virus or bacteria or substance, but the amount that matters. Our bodies contain lots of dangerous entities, but usually are in manageable amounts and in the right places.
     
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