IS BEING TOO CLEAN MAKING US SICK?
This article discuss about clean and human's immune system that cleaning is not the only and right way to protect our body. In our regular sanitary life, we are thretened by harmful invaders as exposure of germ decreased.They recommend that little bit of dirty things help humen protect himself.
When I was young, I always play with dirt outside and I grew up without getting sick freqyently. I agree with that the cause of kids sick is lack of exposure by many harmful invader and children could not prepare it. So, it is good for health to get immunity by exposure dirty things.
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