How much weather pressure is suitable for people's health?

Nature has the necessary conditions for human survival. Through long-term life practice, human beings have gradually adapted to nature, especially to the complex weather in nature. Temperature, humidity and air pressure are three major elements in meteorology, among which air pressure is closely related to human health. The influence of air pressure on human body can be summarized into two aspects: physiology and psychology. The influence of air pressure on human physiology mainly affects the supply of oxygen in human body. People need about 750 mg of oxygen every day, of which 20% is consumed by the brain, because the brain needs the most oxygen. When the natural air pressure drops, the oxygen partial pressure in the atmosphere, the oxygen partial pressure in alveoli and the arterial oxygen saturation all drop, which leads to a series of physiological reactions in human body. Take climbing from lowlands to mountains as an example. As the air pressure drops, the body accelerates breathing and blood circulation to make up for lack of oxygen, resulting in shortness of breath and increased heart rate. Due to the lack of oxygen in the human body (especially in the brain), symptoms such as dizziness, headache, nausea, vomiting, weakness, and even pulmonary edema and coma appear, which is called altitude sickness. At the same time, air pressure will also affect the psychological changes of the human body, mainly making people feel depressed. For example, the rainy and snowy weather under low pressure and the hot and humid weather before thunderstorm in summer often make people feel depressed and uncomfortable. When people feel depressed, autonomic nerves (autonomic nerves) are easily nervous, releasing adrenaline, causing blood pressure to rise, heartbeat to accelerate, shortness of breath and so on. At the same time, the decomposition of cortisol leads to the increase of gastric acid secretion, which is prone to vascular infarction and the sharp rise of blood sugar. In addition, the minimum monthly pressure is closely related to the peak of population death. Some scholars have studied the monthly minimum pressure for 72 months, and found that there were 64 death peaks in 48 hours, with a probability of 88.9%. Diseases follow the solar terms of a year, and the changes of solar terms reflect the changes of climate and diseases. After beginning of spring, the change of biological hormones was the most dramatic period. People's allergic diseases increase, the skin is easy to itch or eczema, and the condition of rhinitis patients is aggravated. Blood circulation in the human body is strong, it is easy to get angry, blood pressure rises, and patients with hemorrhoids are prone to bleeding. From Grain Rain to Duanyang Festival, the yang is more and more vigorous, and the blood flow in the head and chest of human body is upwelling, and many people will have symptoms such as palpitation and dizziness. From Xiaoman and Mangshan to the summer solstice, it is mostly rainy season, and the symptoms of patients with dry skin diseases have improved, while the symptoms of patients with wet skin diseases, rheumatic fever and neuralgia are mostly aggravated. From mild heat to severe heat, the weather turns hot, diarrhea, dysentery and gastrointestinal diseases increase, and some people suffer from heat stroke. During the period from the Millennium to the autumnal equinox, the temperature difference between morning and evening changes greatly, which is easy to cause rhinitis and asthma. In autumn, rhinitis often develops into asthma. During the period of cold dew and first frost in beginning of winter, the climate will gradually decline and asthma will become more and more serious. Patients with chronic tonsillitis are prone to sore throat, and patients with hemorrhoids are more serious than before. Slight cold and severe cold are the coldest seasons in winter solstice. People with heart disease and high blood pressure often get worse, and the number of people suffering from "stroke" increases, and it is easy to get frostbite in cold weather. When approaching beginning of spring, itching symptoms will get worse. Climate change is closely related to people's health. If people can master the laws of climate change, actively adjust their food, clothing, housing and transportation, and adapt to the environment, it will be of great benefit to improving their health.