Pulmonary texture changes are influenced by a variety of factors, and any lesion in any of the structures that make up the pulmonary veins can lead to pulmonary changes, and the sparse pulmonary veins are mostly due to hyperinflation of the lung volume, such as emphysema, and in congenital heart disease when there is little blood in the lungs. In most cases, reduced lung texture means a decrease in pulmonary vascularity and thinning, which is known as pulmonary ischemia. So, how can pulmonary texture reduction be prevented? The following are preventive measures for lung texture reduction: 1, give the lungs enough water Chinese medicine emphasizes that the lungs like to moisten and evil dry, the dry climate in autumn, the most likely to damage the lungs, therefore, this season should pay particular attention to the maintenance of the lungs, must give it enough water. The best lung season of the year is autumn, that is, from autumn to winter, to ensure that drink 2000 ml of water every day, in order to ensure that the lungs and respiratory tract lubrication. 2, give the lungs to eat some carrots and apples This is a convenient and inexpensive way to protect the lungs. Carrots are rich in beta carotene, which can be doubled in the body to vitamin A, which can protect mucous membrane cells from bacterial damage. The pectin and antioxidants in apple peels reduce the inflammatory response in the lungs. Those who eat the most apples have a 33% lower chance of getting a chronic productive cough than those who eat the least apples, according to a study by the National Center for Health Research. 3, active coughing “clean” lungs Every morning, noon or before bedtime, go outside in the fresh air and take a deep breath, slowly raise your arms while taking a deep breath, and then cough so that the air flows out of your mouth and nose, coughing up sputum. After each time to do several normal breathing, as long as the daily persistence, the lungs can be kept clean. 4, over 40 years old regular lung check After 40 years old, lung function begins to decline, but early without any symptoms. Therefore, there are 5 types of people who must have lung function check earlier: long-term smokers, people with chronic cough and phlegm, people with breathing difficulties, people working in dusty environment and people with respiratory diseases. Meanwhile, moderate exercise, maintaining a normal weight, reducing stress and abstaining from smoking can boost the immunity of the lungs. Pulmonary function tests are non-invasive, all you need to do is to blow hard into the instrument. It only takes 3-5 minutes to complete a routine examination.