The reason why the blood pressure is high and the systolic blood pressure reaches 160 mmHg just after waking up is mainly considered to be related to the history of hypertension, emotional stress, carotid artery stenosis or sleep apnea syndrome. 1. History of hypertension: for patients with a history of hypertension, it is easy to have high blood pressure, and when you get up in the morning, it is a peak of blood pressure elevation, so the systolic blood pressure reaches 160 mmHg. 2. Emotional tension: If the mental stress is usually high, the emotional tension may be too high when getting up, which may easily cause the blood pressure to rise, so the systolic blood pressure reaches 160 mmHg. 3. Carotid artery stenosis: For patients with carotid artery stenosis, it is usually easy to affect the blood supply to the brain, thus generating the phenomenon of vasospasm, which is easy to cause the problem of elevated blood pressure when getting up. 4. Sleep apnea syndrome: If sleep apnea syndrome exists, it will cause the problem of lack of oxygen in the brain, so it is easy to produce high blood pressure when getting up. If the blood pressure continues to rise and cannot be lowered by itself, it is recommended to go to the hospital for examination in time, and then take regular antihypertensive drugs to control the treatment, such as nifedipine or nimodipine, etc., if necessary.