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Sleep up dizziness may be orthostatic hypotension, hypertension, coronary atherosclerotic heart disease and other causes, as follows:

orthostatic hypotension: sleep up quickly, body position changes in a short period of time, due to abnormal regulation of their own blood pressure, blood pressure continues to drop, causing dizziness symptoms.

Hypertension: usually do not regularly take blood pressure, sleep up blood pressure increases, leading to increased cerebral blood perfusion, dizziness symptoms.

Coronary atherosclerotic heart disease: the patient's heart can not pump enough blood, so there will be myocardial ischemia, myocardial oxygen consumption increases when forced, leading to shortness of breath, may be due to poor breathing, hypoxia feel dizzy.