Meteorology refers to various physical phenomena in the atmosphere such as cold, heat, dryness, humidity, wind, rain, clouds, fog and snow. Humans live in nature and are closely related to the meteorological factors around them. Meteorological conditions have a clear impact on human health and disease, which is connected with the theory of ancestral medicine “the unity of heaven and man”. With the development of society and continuous research, it has become increasingly clear that medicine and meteorology have an important connection, thus giving birth to an emerging discipline ——medical meteorology. This paper mainly discusses the relationship between meteorology and medicine, aiming to introduce a brick and make a small contribution to the development of medical meteorology. A, the impact of meteorological factors on human physiology and pathology Meteorological factors, including temperature, humidity, airflow, air pressure, etc., these factors have a certain direct or indirect impact on the human physiology and pathology. Sudden changes in temperature in all seasons can act directly or indirectly on the human body. Cold can cause a decrease in pituitary antidiuretic hormone secretion, active adrenal cortical function, increased liver oxidative capacity, vasoconstriction, decreased phagocytosis of immune cells, and various bacteria and viruses take advantage of the opportunity to invade the body and develop. High temperature conditions tend to induce thermoregulatory disorders, inhibit the secretion of the stomach, pancreas and intestinal glands, so that the gastrointestinal peristaltic function is reduced, which can lead to dysfunction of body water and salt, increased cardiovascular burden, central nervous system dysfunction and pathological reactions. Air humidity is the amount of moisture in the air, low temperature humid air can induce bronchitis and rheumatism, nodular disease, kidney disease, chronic back pain, etc.. Air flow is measured by wind speed and wind direction. Excessive wind speed can make the body heat dissipation accelerate and increase, the body is very vulnerable to cold and cold. Wind has an obvious impact on the human mental activity, mild wind can make people refreshed, relaxed and comfortable, strong and continuous wind can cause people nervous, hot wind makes people depressed and uncomfortable, cold wind makes people emotional unhappy, and even induce neuritis, angina attack. When the air pressure is too low, altitude sickness or aviation sickness can occur, with general fatigue and weakness, lethargy, not thinking about eating and drinking, sleep disorders, etc. Therefore, the physiological and pathological changes in the human body have a greater relationship with temperature, humidity, airflow, air pressure, etc., and have a significant impact on the occurrence of disease. Second, the impact of weather on the development of disease humans live in nature, the general weather conditions have a certain degree of adaptability, so the general weather conditions will not have a great impact on the human body. But when the climate conditions change significantly, or beyond the body’s ability to adapt, it will lead to the occurrence of disease, or aggravate the original disease. Traditional Chinese medicine believes that people and their environment are a whole, and changes in the environment often have a greater impact on people’s health. According to the results of medical meteorological research at home and abroad, about 40% of deaths occur under abnormal weather conditions. The most obvious change in weather is the change in temperature. Statistics show that when the daily minimum temperature drops from above zero degrees Celsius to below zero degrees Celsius, or when the daily temperature drop is greater than 8 degrees Celsius, there is a significant increase in cold and flu patients. In addition, weather conditions often show a certain regularity and seasonality in causing diseases. Respiratory diseases such as pneumonia, tuberculosis, and influenza often develop in winter and spring and are epidemic, while bronchitis, bronchial asthma, emphysema, and pulmonary heart disease are easily induced or aggravated in the cold season of autumn and winter. Various rheumatic diseases such as rheumatoid arthritis, rheumatic cold arthritis, osteoarthritis, systemic lupus erythematosus, etc. are prone to attack or aggravate in the colder time of spring, autumn and winter. Cardiovascular system diseases such as coronary heart disease, angina pectoris, acute myocardial infarction, hypertension, cerebral hemorrhage, cerebral infarction and other diseases have a high incidence in late autumn and early winter, late winter and early spring, because at this time the climate is cold or sharp cooling, the human peripheral vascular contraction, resistance increases, blood pressure rises, increasing the load on the heart, or easy to form emboli, which leads to an increase in the above disease attacks. Excessively high and low temperature and air pressure stimulation can trigger migraine and trigeminal neuralgia. Facial nerve palsy can occur with cold or strong wind stimulation. Frostbite is likely to occur during the cold winter season. Ulcers tend to occur in hot and humid summers and cold winters. Hyperthyroidism tends to flare up in the spring when warm air is active. Acute urticaria is likely to occur in spring when pollen is flying. Sunburn dermatitis and heat stroke tend to occur in the hot summer months. There are many other diseases whose occurrence or aggravation is closely related to meteorological conditions, and there is a certain regularity, so I will not list them here. This phenomenon has increasingly attracted the attention of the medical profession and meteorologists. Third, the meteorological guidance on the prevention and treatment of disease meteorological conditions on human physiopathology and disease development has an important impact, mastering this law, we can do targeted, for different meteorological conditions to take appropriate countermeasures to prevent disease. First of all, we should strengthen the popularization of medical meteorology knowledge, listen to weather forecasts regularly, according to the tips of weather forecasts, reasonable arrangements of clothing, food, housing and transportation, to reduce the adverse effects of weather factors on the human body, and avoid harmful weather conditions in advance. For example, pay attention to the cold and warmth in winter and the heat in summer. In the cold season or when the temperature drops sharply, pay attention to add clothes in time, take measures to keep warm and minimize going out. When encountering windy and foggy weather, pay attention to wear masks, hats, scarves, and avoid walking into the wind. In summer, you should reduce hot work or avoid sun exposure. In spring, when respiratory epidemics are high, you should try to reduce the number of people in public places and strengthen the ventilation of rooms. Allergic patients such as allergic asthma, allergic rhinitis, urticaria and other patients should reduce the time of field activities in spring when pollen is high, especially should avoid going out in windy weather to reduce the stimulation of allergens. You can also arrange a reasonable diet for different seasonal climatic characteristics to strengthen your body and prevent diseases. Such as the hot summer season should be light diet, mainly plant-based food; winter should eat mutton, beef and other nutrient-rich food to improve the ability to prevent cold and disease; autumn humidity is low, the air is dry, it is appropriate to eat pears, lilies and other nourishing food to prevent & ldquo; fire & rdquo; the occurrence of. For the treatment of disease, weather also has an important guiding role, especially reflected in the motherland medicine. Medical practitioners according to different climatic conditions, according to the patient to be evidence-based treatment. For example, for patients with joint pain that is stimulated or aggravated by cold, the main treatment is to use medicines that warm the meridians and disperse cold. After thousands of years of practical experience in Chinese medicine, it is believed that the spring is windy, summer is summer, rain is wet, autumn is dry, and winter is cold, and this rule still guides the clinical diagnosis and use of drugs. Chinese medicine & ldquo; with hot far from hot, with cold far from cold & rdquo; theory also reflects the important relationship between medicine and weather, that in the hot summer season, to avoid using too warm drugs, the cold winter season, to avoid using too cold drugs. In addition, these years have been in the major hospitals to carry out the “winter disease summer treatment ” work is also the product of the combination of meteorology and medical treatment. Choose the hot time of the three volt days in summer, with the corresponding drugs, to treat some of the winter more cold diseases, to achieve more satisfactory results. To sum up, weather conditions have an important influence on the physiological and pathological changes of the human body, on the development of diseases, and also have a great guiding effect on how to prevent and treat diseases. Let us further recognize the important relationship between meteorology and medicine, and strive to develop medical meteorology to make more contributions to the health of mankind.