Smoking dizziness may be caused by lack of oxygen to the brain, damage to the brain or cardiovascular diseases. 1. Lack of oxygen in the brain: too much smoking will affect the function of the lungs, affecting the delivery of oxygen so that the patient’s body gas circulation ability is impaired, in the long run, there can be a lack of oxygen in the brain, which in turn causes dizziness and headaches and other symptoms. 2. Damage to the brain: Tobacco smoking also leads to harmful substances into the body, causing damage to brain cells, affecting normal function, can also cause dizziness. 3. Cardiovascular diseases: When smoking for a long time, harmful substances can also lead to hardening of blood vessels, inducing cardiovascular diseases, such as stroke and coronary heart disease, which can also affect the blood supply to the brain and dizziness. Smoking is harmful to your health, so please quit smoking.