Smoke sickness, also known as drunk smoking, generally manifests as dizziness and nausea, with a strong sense of vomiting, etc., mainly because of nicotine poisoning, or increased partial pressure of carbon dioxide and decreased partial pressure of oxygen in the blood, resulting in hypoxia. 1, toxic reaction: mostly occurs in people who have just learned to smoke or never smoked, if too much active or passive smoking at one time, the nicotine dissolved in the blood will cause a toxic reaction in the smoker. Show dizziness and other symptoms; 2, hypoxia: smoking a large amount of smoke into the lungs, the lungs are an important organ of oxygen into the blood, the blood does not get enough oxygen supply, the body will be extremely hypoxic, causing dizziness; tobacco will release a large amount of carbon monoxide after lighting, and carbon monoxide will be absorbed preferentially by the body in the hemoglobin, so that the human brain causes a short period of hypoxia, causing dizziness, thus The phenomenon of smoke sickness; 3, underlying diseases: for example, patients with neurological and cerebrovascular diseases, after a large number of smoking at once, the toxic components in the smoke, such as nicotine, tar, etc., will cause cerebral artery narrowing, spasm, resulting in a transient cerebral blood supply insufficiency, making patients dizzy. When the phenomenon of dizziness occurs, you should stop smoking and immediately move away from the smoke-filled environment to prevent continued inhalation of smoke to reduce the stimulation of nerves and help relieve the symptoms, and if the symptoms are severe, it is recommended that you should immediately go to the hospital for life-saving treatment.