07 July 2021

Too clean is not bad at all!

Scientists have refuted the theory that cleanliness and hygiene reduce children's immunity

Ivan Shangin, Life4me+

British scientists have refuted the theory that the "excessive purity" of modern society hinders the development of the immune system in children.

Article by Graham et al. Microbial exposures that establish immunoregulation are compatible with targeted hygiene published in the Journal of Allergy and Clinical Immunology – VM.

There has long been an opinion that modern society is "too hygienic". This in turn leads to the fact that children interact little with microbes, which means that they do not develop immunity, and they are less resistant to allergies. Some people believe that hand washing and thorough cleaning in the house destroy not only pathogens, but also block the effects of beneficial organisms.

But experts believe otherwise.

Scientists, having conducted a corresponding study, have identified 4 important points that, in their opinion, refute this theory.

  1. The microorganisms that "live" in modern homes are not at all those that are necessary for the formation of immunity.

  2. Modern vaccines not only protect against infections, but also strengthen the human immune system.

  3. It is microorganisms from the natural environment that are important for human health; home cleaning and hygiene do not affect this interaction.

  4. The connection between cleaning the house and possible allergic reactions is most often caused not by the removal of microorganisms, but by active cleaning agents that affect the lungs and cause irritation.

"Cleanliness in the house is good, and personal hygiene is good, but to protect against infection, it is necessary to treat hands and surfaces," says Professor Graham Rourke, lead author of the study. "Heredity, the natural environment and vaccines can provide all the microbiological resources we need."

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