Microbes and the human body

Human inside and outside surfaces such as the skin, mouth, and intestines are covered with millions of individual microorganisms that do not harm us. In fact, they help to protect us from harmful microorganisms. They are called ordinary body flora

The number of normal bacterial cells living in the body is about 100 million. This number is 10 times that of the 10 million cells that make up the human body.

It is well known that microorganisms in the human body constitute more than 100 trillion cells. Most microorganisms are contained in the intestine. The intestines have a major influence on human physiology and nutrition and are indispensable to human life. One such bacterium is Escherichia coli which produces essential vitamin K 2 in the human body. Other bacteria help to prevent the "barrier effect" of pathogens colonization. Microorganisms have been used to produce precious chemicals like antibiotics since the 1940's. Antibiotics produced by microorganisms can inhibit the growth of other microorganisms even at very low concentrations. The first isolated antibiotic was penicillin, discovered by Alexander Fleming in 1929 and produced on a large scale using Penicillium notatum culture. Fungi, bacteria, actinomycetes are important antibiotics.

The presence of various microorganisms in the human body plays an important role in human health. Studies show that there is a significant difference in the types of different microbial species in each human microbiome of a healthy person. In the body, these microorganisms remain in various habitats because they are found in various parts of the skin such as skin, nose, mouth, intestine, vagina etc. Other microorganisms are symbiotic with the host, but some colonized human microorganisms are symbiotic. These interactions are important for human growth and health. This small review explains the microorganisms present in various human habitats and their role in maintaining human health.

The human body is made up of trillions of microorganisms. These microorganisms coexist not only peacefully with the human body but also benefit in several ways. They digest our food, coordinate our immune system, protect our skin from infection and help to play a role in obesity and severe digestive dilemmas. The main microbiomes are in the large intestine that help digestion, produce vitamins, and block harmful microorganisms. Skin and nose are other hotspots. Just because they squeeze out harmful bacteria, we die without beneficial bacteria. However, depending on environmental factors and lifestyle, the microflora varies from individual to individual. For example, studies have shown that children raised on farms are frequently exposed to microorganisms in the soil of farms, so that the rate of allergy and asthma is low, which reproduces the microflora. But time and exposure are also important