Often we think our homes cleaner more than outside, but it turns out that inside of our home are actually more microorganisms than from outside. These are the findings of a new study that studied bacteria and fungi from 1200 homes in the United States. Biodiversity starts at home Some microorganisms in our home dangerously may cause diseases or allergic reactions. Others are useful and help children develop a healthy immune system and prevent allergies in later life. In any case, they are an important part of our lives and an important factor for our health.
However, until now, we have had a very limited understanding of the normal bacteria that live in our homes. To answer this question, the researchers made a scientific project called “Wildlife in our homes.” Samples were collected from the dust of 1200 houses in the United States. According to the researchers that were published in “Proceedings of the Royal Society,” every home has its own microbial ecosystem that is clearly distinguishable from a microbial ecosystem that is located outside.
In microbial ecosystems, the inner space is 50 percent more different from the outside. Outside, only a few species dominate the entire ecosystem, but indoors, the researchers found a whole collection of various fungi and bacteria. Most species of bacteria that make up a unique microbial ecosystem in homes, actually come from humans and animals living in the home. The body is filled with diverse populations of bacteria, which scientists call them microbiome. During the day, your body kicks into your surroundings bacteria from the skin, mouth and even from your stool. As a result of this your home has a microbiome.
That is a community that consists of all the bacteria that live there and a microbial signature of your family.
Dogs and cats This includes your pets.
In fact, dogs are the most important factor in microbial diversity in the home. Just based on the types of bacteria present in house dust, the researchers could predict with 92 percent accuracy whether a dog living in the home, and 83 percent of cases could predict whether there lives a cat. That’s because pets also have their own unique microbiome.Researchers found 56 genera of bacteria that are common in homes with other dogs and 24 genera that are more common in homes with cats. Most are bacteria that normally live in the mouth or stool lovers, it sounds horrible, but scientists say it actually is not a bad thing. Since most of the bacteria your pets carry can’t get you sick, it can be beneficial in the long run. “There is some evidence that exposure to microbes from the dog can actually be beneficial for children, reduce the tendency toward allergies,” said co-author of the study, Nathan Ferrer Bacteria and gender Of course, people have a hand in the microbial community in every home and researchers say that based on bacteria in household dust can predict the sex of the people living in the home.
Homes with more men than women have more skin and faecal bacteria.
This difference is partly due to biology; male skin usually has a larger population of skin bacteria “Corynebacterium”, for example, researchers say the male body naturally throws more bacteria than women. On the other hand, households with more women than men have more “Lactobacillus”, a genus of bacteria that includes several of the species that are part of the vaginal microbiome.
Fungi around us
Unlike bacteria, most fungi in the home come from outside, so that type of fungi in the home depends on the climate where you live. Since almost a third of fungi were found in house dust are potential allergens, the researchers say that regional differences in the composition of fungi from house dust explain regional differences in allergies. The population of fungi in the home depends on the age of the house, if it has a basement in it and whether the dog lives inside.
Life with microorganisms
Researchers hope that better representation of microorganisms that inhabit the homes will help us better understand the environmental impact on our overall health. Because as the researchers emphasize, housing is becoming increasingly urbaner, the impact of microbes in homes, becoming increasingly larger. And for those who worry about the germs that share the home, researchers are offering a little cheeky advice – “If you want to change fungi that you are exposed at home, then consider moving to another home (preferably as far away) and if you want to change the bacteria in the home, then you need to change those with whom you live in the home “- researchers say.