What are the effects of climatic conditions on gastrointestinal diseases?

Man and nature are a unified whole, and the functional activities of zang-fu organs and the movement of qi and blood are closely related to seasonal changes. There are four seasons in a year: warm in spring, hot in summer, cool in autumn and cold in winter, which makes everything show the changing law of birth, growth, harvest and hiding. People live in nature, and the external environment, including the changes of climate in four seasons, has great influence on people's physiology and pathology. Some patients with stomachache and diarrhea are particularly afraid of cold, and when they are cold, they will have an attack or their symptoms will get worse. There are still some people who lose their appetite in summer and autumn and often have diarrhea. Sudden climate change and cold and dampness are important reasons for inducing or aggravating gastrointestinal diseases.

Spring is the high incidence period of common diseases, which is related to certain meteorological conditions. The meteorological conditions in the early stage are that the temperature continues to be high, or the temperature rises too fast, or the long-term low temperature turns to high temperature, or the air pressure increases too much, which often induces gastritis, enteritis, gastroenteritis and other diseases.

In the hot summer, the heat is unbearable. In high temperature environment, in order to dissipate heat, the heart should increase the stroke volume and make the blood flow to the vascular network under the body epidermis. However, the limited blood is more diverted to the body surface, and the cerebral blood flow naturally decreases accordingly, resulting in dizziness, headache, insufficient gastrointestinal blood flow, abdominal distension, indigestion, loss of appetite and other symptoms.

When the lowest temperature drops below zero degrees Celsius, it is the high incidence period of gastric and duodenal ulcers. The weather changes dramatically, for example, after a cold wave, the temperature drops sharply to above 10℃, and the cold stimulation causes dysfunction of cerebral cortex, vasospasm of gastric and duodenal mucosa, which causes gastric and duodenal mucosa to be eroded by acidic digestive enzymes to form ulcers, and the number of patients with gastrointestinal bleeding will also increase greatly.