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There are more microbes in a man's beard than in dog hair

19.04.2019

A man's beard is a receptacle for a huge number of microbes, including potentially dangerous ones. There are more of them in it than in the coat of dogs that are taken out for a walk on the street.

It all started when researchers at the Hirslanden Medical Center in Switzerland decided to find out how clean MRI scanners are in regular hospitals. This interest was not accidental. PMRI equipment is periodically used to examine animals, since veterinary clinics do not have their own scanners for various reasons.

It turned out that the devices that were sometimes used to examine dogs were cleaner than those used only for procedures with people.

After that, experts took swabs from the face of 18 men and from the neck of 30 dogs of different breeds, then comparing the microbial composition of the samples. As a result, they stated: in humans, bacterial "pollution" is more significant than in animals.

According to the lead author of the project, Professor Andreas Guzeit, out of 30 domestic dogs that are regularly taken outside, microbes were found in 23 in small quantities. In turn, among the bearded men aged 18 to 76 participating in the study, a high the level of microbes in the hairline was recorded in absolutely everyone. As for potentially dangerous microorganisms, they were found in 7 out of 18 men (38%) and in 4 out of 30 dogs (13%).

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Random news from the Archive

A useful variety of corn for popcorn has been developed 23.11.2022

Scientists at the University of Nebraska-Lincoln have developed a high-protein popcorn variety. It has a good effect on bowel function and improves health.

Experiments began thirty years ago when researchers successfully inserted a variant of the opaque-2 gene into the maize genome. This made it possible to obtain a variety rich in lysine.

Lysine is used in countries where people are suffering from hunger. But this gene changed the structure of corn grains so much that it was impossible to extract popcorn from it. Now everything has changed.

Scientists have discovered fragments of the corn genome responsible for the characteristic popcorn texture. Over the course of several generations of maize, they crossed carriers of these genes with other varieties.

The new varieties outperform today's most popular varieties in terms of nutritional value and taste. They have a beneficial effect on the human microbiome. When the popcorn from this corn is digested, the microbiome greatly increases the production of butyrate, a fatty acid. This acid improves health. Nate Court, one of the leaders of the project, said that popcorn can reduce appetite and train the immune system.

The new corn contains almost twice as much lysine, an essential amino acid in the human diet.

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