Treadmill exercise is a kind of strenuous exercise, dizziness symptoms after strenuous exercise, caused by the following reasons: 1, after strenuous exercise, the whole body needs more blood flow, resulting in a reduction of blood flow back to the brain, which can cause cerebral arteries temporarily appear insufficient blood supply, dizziness symptoms can be relieved after resting for a period of time; 2, after strenuous exercise, the heart rate increases, the blood pressure increases rapidly, and if usual If there is a history of hypertension, it can cause unstable blood pressure control and insufficient blood supply to the cerebral arteries, resulting in dizziness and rapid heart rate; 3. Anemia, anaemia can also cause dizziness in patients with strenuous exercise, and can be accompanied by pallor, weakness, etc. If the blood pressure is usually high in combination with a high blood pressure, it can cause temporary insufficient blood supply to the cerebral arteries. If usually high blood pressure combined with heart disease, it is best not to carry out strenuous exercise.