There are two possible reasons for dizziness: 1. Patients with hypotension, long-term low blood pressure will cause insufficient blood supply to the head, patients will feel dizzy and faint, after exercise, blood pressure will increase, then the symptoms of dizziness may be relieved. 2. neurological disorders, patients with depression will have dizziness, dizziness, fatigue, weakness, body heaviness, after exercise can The patient will experience an increase in sympathetic excitability, a contraction of blood vessels in the skin, an increase in blood pressure, an increase in heart rate, an increase in blood sugar, and a large amount of sweating to promote the elimination of water from the body, the whole person will feel relaxed and refreshed, and the symptoms of dizziness will naturally be relieved, so the head may not feel dizzy after exercise.