Next to Godliness

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Interesting report that validates what Jen and I have always thought. From Yahoo News/AP:
Rat study shows dirty better than clean
Gritty rats and mice living in sewers and farms seem to have healthier immune systems than their squeaky clean cousins that frolic in cushy antiseptic labs, two studies indicate. The lesson for humans: Clean living may make us sick.

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, one of which was published Friday in the peer reviewed Scandinavian Journal of Immunology, 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.

Also, the wild mice and rats had as much as four times higher levels of immunoglobulins, yet weren't sick, showing an immune system tuned to fight crucial germs, but not minor irritants, Parker said. He said what happened in the lab rats is what likely occurs in humans: their immune systems have got it so cushy they overreact to smallest of problems.

"Your immune system is like the person who lives in the perfect house and has all the food they want, you're going to start worrying about the little things like someone stepping on your flowers," Parker said.

Challenged immune systems � such as kids who grow up with two or more pets � don't tend to develop as many allergies, said Dr. Stanley Goldstein, director of Allergy & Asthma Care of Long Island.
Makes a lot of sense --vaccines cause our bodies to generate antibodies to their weakened versions of disease -- why shouldn't ones lifestyle also affect the immune system. Hat tip to Roger L. Simon

1 Comment

So, does this mean I can start letting the goats inside? They'd really like that.

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This page contains a single entry by DaveH published on June 17, 2006 9:58 PM.

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