The effect of air on people, the effect of air on people

Air is not a specialty of the Earth, and it is distributed on all planets. However, when the solar system was formed, the oxygen on other planets was blown away by the solar wind, leaving only a few types of air, and the air on Earth was not blown away due to the protection of ozone.

Air refers to the mixture of gases in the Earth's atmosphere. It is mainly composed of 78% nitrogen, 21% oxygen, but also rare gases, other gas impurities and carbon dioxide. The composition of air is not fixed, and as the altitude changes, the air pressure changes, and the proportion of air composition also changes.

But for a long time, people thought that air was a single substance, until later the French scientist Lavoisier first came to the conclusion that air is composed of oxygen and nitrogen. At the end of the 19th century, scientists discovered through a large number of experiments that there were rare gases such as helium, argon, and xenon in the air.

Oxygen in the air is necessary for all aerobic organisms. All animals need to breathe oxygen. In addition, plants use carbon dioxide in the air for photosynthesis, which is the only carbon in almost all plants.

Western thinking is to study the influence of A on B, then take B to a place where there is no A, compare and observe B's situation, and draw conclusions.

Locally, this way of thinking works.

However, he ignores a problem: from the perspective of the end, the later B is no longer the original B.

1. Respiratory effect for human beings.

2. As a medium, spread sound.

3. Spread seeds and create food chains.

1. It is conducive to fresh air and promotes healthy blood circulation;

2. It is conducive to strengthening the physique and making the body full of vitality;

3. It is conducive to pure air to soothe the nerves and calm the mind;

4. It is conducive to stimulating appetite and helping food to digest more completely;

5. It is conducive to the fresh air in the room to have a more tranquil and beautiful eggplant fiber sleep service.

Air is an important substance for maintaining life, and its quality has an important impact on human health. Due to the rapid development of economy and technology, China's energy demand and consumption have increased significantly, and a large number of harmful gases generated by this are directly emitted into the atmosphere, making air pollution increasingly serious and showing compound pollution. The atmospheric environment has different degrees of influence on human health, and the higher the concentration, the greater the impact on the human body.

Associated diseases. Respiratory diseases.

Airborne pollutants can trigger asthma, coughing, and chest discomfort, and particulates such as dust, soot, and smoke can have various negative effects on our health.

Lung cancer potential**.

In 2013, the World Health Organization listed air pollution as a potential for lung cancer**, and according to the American Heart Association, there is abundant evidence that it may also increase the risk of heart disease and stroke, and other studies have also linked long-term air pollution to cognitive decline as well as psychological crises.

The harm caused by air pollution to the human body is mainly reflected in the harm of the respiratory system, including inducing asthma, chronic obstructive pulmonary disease, and in severe cases, it can cause lung cancer. In addition, the content of formaldehyde and benzene in the polluted air is high, and after long-term inhalation, it can enter the circulatory system and accumulate in the body, resulting in leukemia.

It will affect the respiratory tract of the human body, and at the same time, it will also cause various problems such as **.