Dr. Homer Boushey explores the hygiene hypothesis, the notion that modern cleanliness causes a lack of stimulation of the immune system in early development, making children more vulnerable to things that cause asthma. Recorded on 03/30/2011. (#21377)
Yes, the hygiene hypothesis has entered the discussion on causes of autism. A 2007 Medical Hypotheses article by K. Becker suggests that immune pathways affected by western hygienic practices may impact brain structure or function contributing to autism. Becker mentions “immunization” in this light but in confessing its “controversial” nature does not pursue it.
Allergies and the Hygiene Hypothesis - News Medical
Simply put, the Hygiene Hypothesis is the theory that naturally occurring infections somehow immunize the body against the development of asthma, allergic diseases and autoimmune disease. If the body sees a lot of these natural infections, the immune system is skewed away from allergy and autoimmune disease. If it doesn’t, and it gets too many antibiotics in the first year of life, and, in essence, its environment is “too clean”, then the immune system moves towards allergy.
Although the "hygiene revolution" of the ..
The above phenomenon is explained by the “hygiene hypothesis,” which suggests that since we live in a cleaner environment, our immune systems do not need to fight as many infections as in the past. We don't grow up on farms around animals, we don't play in the dirt, we receive vaccines to protect against infections, and we receive antibiotics when we do have infections.
Hygiene Hypothesis and “Old Friends” Hypothesis
The Hygiene Hypothesis is one theory that may help to explain the relationship between the environment itself and the development of allergy. It suggests that the immune system is affected by exposure to endotoxin in the environment. Immune tolerance to potential allergens could result when exposure to certain microbial derivatives occurs at certain stages during the maturation of the immune system. Less exposure to endotoxin in dirt would result in more allergies. In other words, there is a preventative benefit in being in a not-too-clean environment, at least in certain people. There is some evidence that children on farms have fewer allergies and that some with pets have fewer allergies. However, timing and genes would still play a large role.
Hygiene hypothesis: Early germ exposure prevents …
At the CSACI Annual Scientific Meeting held in Ottawa in October 2004, there was an interesting debate on the Hygiene Hypothesis by two experts in the field of allergy. These are some of the main arguments.
The Hygiene Hypothesis: Are Cleanlier Lifestyles …
International research has noted that Asthma rates have doubled across the civilized world since 1980. They have been looking into this, and in 1989, one of the researchers has suggested the “Hygiene Hypothesis” which many others have also looked into over the last two decades.