Dirty kids are healthy kids - the Hygiene Hypothesis

Tuesday, April 03, 2012 by: J. D. Heyes
Tags: hygiene hypothesis, dirt, health

eTrust Pro Certified

Most Viewed Articles
Popular on Facebook
CDC issues flu vaccine apology: this year's vaccine doesn't work!
The five biggest lies about Ebola being pushed by government and mass media
Ultraviolet light robot kills Ebola in two minutes; why doesn't every hospital have one of these?
Tetanus vaccines found spiked with sterilization chemical to carry out race-based genocide against Africans
Biologist explains how marijuana causes tumor cells to commit suicide
Companies begin planting microchips under employees' skin
The best way to help your body protect itself against Ebola (or any virus or bacteria)
NJ cops bust teenagers shoveling snow without a permit
Russia throws down the gauntlet: energy supply to Europe cut off; petrodollar abandoned as currency war escalates
McDonald's in global profit free fall as people everywhere increasingly reject chemically-altered toxic fast food
W.H.O. contradicts CDC, admits Ebola can spread via coughing, sneezing and by touching contaminated surfaces
Top ten things you need to do NOW to protect yourself from an uncontrolled Ebola outbreak
Chemotherapy kills cancer patients faster than no treatment at all
FDA targets Dr. Bronner's Magic Soaps for sharing health benefits of coconut oil
U2's Bono partners with Monsanto to destroy African agriculture with GMOs
Why flu shots are the greatest medical fraud in history
Governments seize colloidal silver being used to treat Ebola patients, says advocate
Flu vaccine kills 13 in Italy; death toll rises

(NaturalNews) Here's a concept that most parents will find a little hard to believe: new research shows that it's possible kids can be too clean.

You read that right.

That's because all of the soap dispensers, hand sanitizers and alcohol-tinged wipes could be robbing our kids from exposure to the germs that help strengthen their immune systems.

According to new research done on mice, increasing exposure to germs helps develop the immune system, thereby preventing allergies and other immune-related diseases like colitis and asthma later in life.

Researchers at the Brigham and Women's Hospital (BWH) in Boston led the study and published their results in the March issue of Science magazine. Using the "hygiene hypothesis," the team says research shows a lack of exposure to microbes at an early childhood age increases susceptibility to some diseases because the lack of exposure suppresses the body's immune system. The study does more than just support the notion, it also may explain the whys and hows of the process.

Researchers warned, however, that their research was conducted on mice, not humans. Still, the results seemed to indicate that you have to trigger the immune system with the introduction of germs in order for it to develop fully.

How it works

The research team, led by co-authors Dr. Richard Blumberg, chief for the BWH Division of Gastroenterology, Hepatology and Endoscopy, and Dr. Dennis Kasper, director of BWH Channing Laboratory, studied "germ-free" mice bred in a sterile environment without exposure to microbes, as well as specific-pathogen-free mice that were raised in a normal laboratory environment.

The mice were bred to develop forms of asthma and inflammatory bowel disease, in which their immune systems were then compared.

The team found that the germ-free mice had more invariant natural killer T cells in their lungs and bowel, and developed more severe disease symptoms.

"[... W]e show that, in germ-free (GF) mice, invariant natural killer T (iNKT) cells accumulate in the colonic lamina propria and lung, resulting in increased morbidity in models of IBD and allergic asthma compared to specific pathogen-free (SPF) mice," Blumberg and Kasper wrote.

The researchers also found that when they exposed germ-free mice to mice with germs in their first few weeks of life, they didn't develop high levels of invariant natural killer T cells. Also, they didn't develop the more severe symptoms seen in those mice kept germ-free. And, they discovered, germ-free mice with early-life exposure to microbes developed long-term disease protection.

"These studies show the critical importance of proper immune conditioning by microbes during the earliest periods of life," Blumberg told reporters. "Also now knowing a potential mechanism will allow scientists to potentially identify the microbial factors important in determining protection from allergic and autoimmune diseases later in life."

Hygiene hypothesis

The origin of the hygiene hypothesis dates back to 1989, when a researcher named D.P. Strachen first proposed it in the British Medical Journal. His theory asserts that "the reduction of early childhood infectious disease, due to widespread vaccination of children or increased use of antibiotics, has led to an increased prevalence of allergic diseases," writes Lori Baker Schena for the University of Southern California Health Magazine.

Meanwhile, Strachen found that there were lower incidents of asthma and allergy in large families.

"It seems that parents these days are a lot more worried about minor infections in their kids," Ronald M. Ferdman, M.D., assistant professor of clinical pediatrics at the Keck School of Medicine and attending physician in the division of clinical immunology and allergy at Children's Hospital Los Angeles, told the magazine.

"Nobody would say that you should purposely expose your child to infections. On the other hand, there is no need to keep children in a bubble," he added. "In America, there is no risk of exposing children to malaria or some horrendous disease. But parents do get upset if their child comes down with a cold."

And it's that paranoia that, in all actuality, could be making our children more susceptible to immune-system deficiencies.

Sources for this article include:




Join over four million monthly readers. Your privacy is protected. Unsubscribe at any time.
comments powered by Disqus
Take Action: Support NaturalNews.com by linking back to this article from your website

Permalink to this article:

Embed article link: (copy HTML code below):

Reprinting this article:
Non-commercial use OK, cite NaturalNews.com with clickable link.

Follow Natural News on Facebook, Twitter, Google Plus, and Pinterest

Colloidal Silver

Advertise with NaturalNews...

Support NaturalNews Sponsors:

Advertise with NaturalNews...


Sign up for the FREE Natural News Email Newsletter

Receive breaking news on GMOs, vaccines, fluoride, radiation protection, natural cures, food safety alerts and interviews with the world's top experts on natural health and more.

Join over 7 million monthly readers of NaturalNews.com, the internet's No. 1 natural health news site. (Source: Alexa.com)

Your email address *

Please enter the code you see above*

No Thanks

Already have it and love it!

Natural News supports and helps fund these organizations:

* Required. Once you click submit, we will send you an email asking you to confirm your free registration. Your privacy is assured and your information is kept confidential. You may unsubscribe at anytime.