What Are the Causes of Dizziness from Smoking?

　　In general, smoking-induced dizziness may be caused by factors such as nicotine overdose, cerebral hypoxia, chronic obstructive pulmonary disease (COPD), insufficient cerebral blood supply, and hypertension. Symptomatic management through general treatments or medication may be necessary. If symptoms persist, prompt medical attention at a hospital is recommended. Detailed explanations are as follows:

　　1. Nicotine Overdose

　　Nicotine in tobacco is a nervous system stimulant. Excessive intake can excite the central nervous system, leading to elevated blood pressure and increased heart rate, which may cause dizziness accompanied by palpitations, sweating, and anxiety. It is recommended to reduce or quit smoking and use nicotine replacement therapies such as nicotine patches or gum to gradually reduce dependence.

　　2. Cerebral Hypoxia

　　During smoking, the combustion of cigarettes produces significant amounts of carbon monoxide. In enclosed environments, excessive inhalation of carbon monoxide can occur. Carbon monoxide binds with hemoglobin in the body, potentially causing cerebral hypoxia and resulting in dizziness after smoking. This condition typically does not require specific treatment. Prompt cessation of smoking, ventilation by opening windows, and increasing oxygen levels in the air can alleviate symptoms.

　　3. Chronic Obstructive Pulmonary Disease (COPD)

　　Long-term smoking can lead to COPD, damaging lung tissue and causing airway narrowing and alveolar destruction, which impairs gas exchange efficiency and lowers oxygen levels in the blood, resulting in dizziness. Symptoms may also include shortness of breath, coughing, and sputum production. It is recommended to follow medical advice and use medications such as salbutamol aerosol, tiotropium bromide inhalation powder, and budesonide inhalers to control symptoms and improve respiratory function.

　　4. Insufficient Cerebral Blood Supply

　　Smoking can cause vasoconstriction, particularly in cerebral blood vessels, reducing blood flow to the brain and resulting in insufficient cerebral perfusion, which can lead to dizziness, possibly accompanied by headache and memory decline. It is recommended to follow medical instructions and use medications such as clopidogrel bisulfate tablets, ginkgo biloba extract tablets, and Yangxue Qingnao granules to alleviate symptoms.

　　5. Hypertension

　　Smoking stimulates sympathetic nerve activity, increasing heart rate and cardiac contractility, which raises blood pressure. Elevated blood pressure increases pressure on cerebral blood vessels, accelerates blood flow, and exerts force on the vessel walls, causing dizziness, possibly accompanied by headache, palpitations, and chest tightness. It is recommended to follow medical guidance and use medications such as nifedipine tablets, methyldopa tablets, and captopril sustained-release tablets for treatment.

　　If dizziness occurs after smoking, drinking some warm water is recommended to promote metabolism and help the body eliminate harmful substances from tobacco more quickly.