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12 September 2011

Dirt may be good

Some experts say the body must learn to tolerate germs to protect itself from health problems.

Some experts say the body must learn to tolerate germs to protect itself from health problems.

Proponents of the hygiene hypothesis believe that reduced exposure to bacteria, viruses and parasites has impaired the immune system's ability to properly respond to environmental challenges.

Hygiene causes medical problems

 
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