because thet ignore their health care.some person scare to visit their doc, maybe u are one of them...
2007-03-17 06:13:06
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answer #1
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answered by nazmin 1
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It's the continuing evolutionary battle between the human immune system, and the various small organisms that think humans are a tasty lunch. Humans do have an advantage in the battle with the bugs: the ability to develop vaccines, which help teach the body new tricks to deal with them.
2007-03-17 06:23:35
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answer #2
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answered by Anonymous
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Life is a good excuse to be random, it certainly is not based off good people vs bad people or all the wonderful qualities someone can posses. It is all random and it sucks
2007-03-17 06:16:51
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answer #3
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answered by HRcutie 1
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lack of proper diet, stress, basically a weakened immune system will cause diseases.
Also, during the winter, the indoors harbor bacteria... moist dark warm places are where they thrive the most. Make sure you wash your hands frequently.
2007-03-17 06:16:06
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answer #4
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answered by love for art 3
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It's just the natural way that various organisms evolve... i.e. viruses, bacteria, abnormal cell growth, etc.
2007-03-17 06:15:56
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answer #5
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answered by Biz 3
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some are just born with it or they get it from people
2007-03-17 06:11:10
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answer #6
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answered by ? 3
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god got bored
2007-03-17 06:11:23
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answer #7
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answered by Miss Casey 4
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