When your immune system has it too cushy it may not be prepared to protect you in tough times. Clean living may actually make us sick. New studies comparing sanitized rats to sewer rats reported in the Scandinavian Journal of Immunology found that wild rats had as much as four times higher levels of immunoglobulins than rats living in sanitized cages, yet weren't sick. Their immune system were tuned to fight crucial germs because they had a history of fighting such germs. The rats raised in sanitized systems overreact to even the smallest change in conditions; their systems go crazy.
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Tag: immune system