The main reasons for dizziness caused by smoking in the morning are: 1, low blood pressure in the morning, harmful substances in tobacco can stimulate the cerebral arteries, causing cerebral vascular spasm leading to symptoms of dizziness. 2, tobacco contains a large number of harmful chemicals, such as nicotine, carbon monoxide, sulfur dioxide, etc., carbon monoxide can be combined with hemoglobin, carbon monoxide and hemoglobin combined with a faster rate than oxygen and hemoglobin, leading to symptoms of dizziness. This leads to temporary ischemia and hypoxia symptoms in the brain resulting in dizziness. There are many hazards of smoking, which can cause coronary heart disease, cerebrovascular disease, lung disease, low resistance, etc. Smoking is harmful to health, and the healthiest way of life is to quit smoking. Drink more water and eat a light diet. If you often experience dizziness, it is recommended that you go to the hospital to check your blood pressure, blood lipids, and blood counts for further examination to confirm the diagnosis.