Almost all long-lived elderly people smoke

There is no direct causal relationship between longevity and smoking, and the harm of smoking to health has been extensively studied and confirmed. The smoking habits of long-lived elderly people may be related to a combination of factors such as their genes, living environment, and other health habits. Smoking can lead to various health problems such as lung cancer, cardiovascular disease, chronic obstructive pulmonary disease, etc. Quitting smoking is an important measure to improve health. The negative impact of smoking on health has been widely confirmed as a scientific fact. Tobacco contains harmful substances such as nicotine and tar. Long term smoking can damage the respiratory system and increase the incidence of malignant tumors such as lung cancer and throat cancer. Smoking can also damage the vascular endothelium, cause atherosclerosis, and increase the risk of cardiovascular disease such as myocardial infarction and stroke. Chronic obstructive pulmonary disease is closely related to smoking, manifested as symptoms such as chronic cough, sputum production, and difficulty breathing. Smoking can accelerate skin aging, affect digestive system function, and lead to diseases such as gastric ulcers. The phenomenon of individual long-lived elderly people having smoking habits needs to be comprehensively analyzed. Genetic factors may make some people more tolerant to the harm of tobacco, but this is a rare occurrence. A good living environment, regular schedule, moderate exercise, and other healthy habits may partially offset the harm of smoking. Social psychological factors such as optimism and harmonious interpersonal relationships may also have a positive impact on longevity. But these factors cannot deny the health risks of smoking itself, let alone serve as reasons to support smoking. The key to maintaining good health and longevity lies in establishing a scientific lifestyle. A balanced diet should include sufficient vegetables, fruits, whole grains, and high-quality protein, while limiting the intake of high salt, high sugar, and high-fat foods. Regular aerobic exercise such as brisk walking, swimming, etc. can help enhance cardiovascular and pulmonary function. Smoking cessation and alcohol restriction are important measures to prevent various diseases. Regular physical examinations can detect health problems early. Maintaining a positive and optimistic attitude and participating in moderate social activities can help improve the quality of life. For smokers, it is recommended to quit smoking as soon as possible and seek guidance from professional doctors to adopt scientific and effective smoking cessation methods.