Bacteria, as one of the main groups in the biological world, are widely present in our living environment, in a staggering number. It is estimated that the global total of bacteria is about 5 x 10 ^30, with a variety of shapes, including spherical, rod and spiral. They have a complex and multifaceted relationship to the health of humankind, with mutually beneficial symbiotic harmony and tensions to confront conflict.
Mutually interestd symbiotic life: bacteria as guardians of the human body
Within the human body there is a great deal of bacteria that, under normal conditions, maintain a delicate balance with the human body. Scientists speculate that the number of bacteria in a person can be as high as 10 trillion, about 10 times the number of human cells. These bacteria not only pose a threat, but are essential to human health. For example, intestinal fungi, such as lactate and duplexella, can effectively promote gastrointestinal creeping, improve constipation and participate in vitamin synthesis and promote the absorption of trace mineral elements. In addition, some bacteria produce immunosuppressives in the body, enhance human defence and maintain the balance of the bacteria in the body.
In the mouth, although bacteria are also “principals” for diseases such as carvings and larvae, there are also useful bacteria, such as saliva streptocycoccus, rat lactactose, which can help digest food, participate in cell metabolism, and act as immuno-cleaning and self-cleaning. Further studies have found that proteins produced by certain oral bacteria can bind to HIV and prevent them from intrusion into human health cells.
A number of “resident strains” in the skin are also beneficial to humans. Their metabolites contribute to skin cell growth, slow ageing, reduce wrinkles and form acid masks to help humans resist harmful microorganisms. For example, a substance that is effective in inhibiting the growth of tumours and is expected to be a “special effect drug” to prevent skin cancer.
Combating conflict: bacteria as the cause of disease
Although bacteria coexist in harmony with the human body in most cases, they are also pathogens of many diseases. Bacteria can spread diseases among normal human beings by a variety of means, including exposure, air transport, food and water, and are more contagious. For example, plagues, trachoma, tuberculosis, gonorrhoea, anthrax, etc. were caused by bacteria. When bacteria in the human body develop disorders such as reduced immunity or chronic lack of food stimulation in the intestinal tract, harmful bacteria grow in large quantities, causing many diseases and possibly even carcinogens.
The symptoms of bacterial infections are diverse, with light people likely to be only heat and associated symptoms, and heavy people may have severe consequences such as infectious shock, sepsis, etc. Therefore, the prevention and treatment of bacterial infections is particularly important. Attention is usually paid to personal hygiene, such as hand-washing, proper hand-washing and avoiding exposure to the source of infection. In the event of symptoms of bacterial infection, treatment should be actively sought, without delay.
The double-edged sword effect of antibiotics.
The discovery of antibiotics is undoubtedly a major victory for humanity against bacterial infections. However, the use of antibiotics is also a double-edged sword. They can kill bacteria, but they can also destroy useful herbs in the human body and cause herb disorders. The long-term use of antibiotics is more likely to result in the production of drug-resistant bacteria, such as methoxysilin-yellow fungi, superbacteria, which have become a major health hazard. Therefore, when using antibiotics, misuse should be avoided, in strict accordance with the instructions of the doctor.
Concluding remarks
The relationship between bacteria and human health is complex and delicate. They are the guardians of the human body and the perpetrators of disease. In our daily life, we should maintain the health balance of the human body by properly understanding the role of bacteria, maintaining personal hygiene, rationally using antibiotics, providing a good nutritional environment for the good bacteria in the body and promoting their reproduction.
