Why are northerners more susceptible to respiratory diseases and southerners more susceptible to joint diseases?

Because there are three unstable and dry seasons in the north, northerners are more prone to respiratory diseases. Southerners feel colder in winter, because the air in the south is more humid, so under the same temperature conditions, the contact between air and water will take away more temperature of the human body, so southerners generally have some diseases related to this phenomenon, such as rheumatism and joint diseases.

Spring, autumn and winter are the high incidence seasons of respiratory infectious diseases. Because the weather is changeable, it is warm and cold at first sight, the climate is still cold and dry, and the temperature difference between day and night is large, especially in the north. When spring, summer, autumn and winter come, it is difficult for the internal environment of the human body to adapt to the external environment at once, and the resistance is relatively low. Pathogenic microorganisms such as germs and viruses take the opportunity to invade the human body, which is particularly easy to cause respiratory infectious diseases such as influenza, meningitis and mumps.

Especially in cities, because the weather is dry, there are many vehicles, and the places where vehicles pass are dusty, bacteria and viruses. At this time, the dust in the air will cause serious pollution to the respiratory tract. Old people and children are the first to be infected with respiratory diseases, because their resistance is low and they can't stand this kind of stimulation to the respiratory tract. Common symptoms include: fever, cough, expectoration, runny nose, sneezing, sore throat, itchy throat, hoarse throat, headache and dizziness; May be accompanied by nausea, vomiting, abdominal pain, diarrhea and so on. Doctors can diagnose rhinitis, pharyngitis, herpetic angina, suppurative tonsillitis, laryngitis, tracheitis, bronchitis, asthmatic bronchitis, pneumonia and so on.

The humidity in the south is relatively high, and it is easier to get rheumatism. In winter in the south, due to the contact between air and water and the human body, the cold is wet and cold, which is deep into the bone marrow. If the north is dry and cold, the south is wet and cold. Southerners don't like to wear thick winter clothes in winter, so the cold is more likely to touch people's skin and penetrate into the meat along the skin.