Great news from the Scandinavian Journal of Immunology, which published two studies last Friday: wild rats living in filthy sewers seem to have stronger immune systems than lab rats living in clean labs.
According to Fox News: “The studies give more weight to a 17-year-old theory that the sanitized Western world may be partly to blame for soaring rates of human allergy and asthma cases and some autoimmune diseases, such as Type I diabetes and rheumatoid arthritis. The theory, called the hygiene hypothesis, figures that people's immune systems aren't being challenged by disease and dirt early in life, so the body's natural defenses overreact to small irritants such as pollen.
The new studies … found significant differences in the immune systems between euthanized wild and lab rodents.
When the immune cells in the wild rats are stimulated by researchers, "they just don't do anything they sit there; if you give them same stimulus to the lab rats, they go crazy," said study co-author Dr. William Parker, a Duke University professor of experimental surgery. He compared lab rodents to more than 50 wild rats and mice captured and killed in cities and farms.”
If you could see their rooms, you’d know that my kids are doing their best to keep their immune systems as strong as possible.
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