Getting up in the morning with a groggy head is considered to be caused by sleep disorders, abnormal blood pressure, low blood sugar and other conditions. 1. When sleep deprivation occurs, the body and brain are not sufficiently rested, which can produce dizziness, headache and fatigue in the morning after getting up. Patients may also suffer from nocturnal episodes of apnea syndrome, which in turn causes sleep disorders and hypoxia. 2. If the patient suffers from high blood pressure disease, the blood pressure is easy to fluctuate in the morning, and the blood pressure is too high or too low, which will produce the feeling of dizziness in the brain after waking up in the morning. 3. When the patient is hypoglycemic, the brain as well as the body lacks sufficient energy, which triggers the symptom of brain drowsiness when waking up in the morning. In conclusion, patients should pay attention to develop good living habits on the one hand, and pay attention to the prevention of cardiovascular, cerebrovascular and other diseases on the other hand, and if necessary, consult a doctor in time to make a clear diagnosis, so as to take targeted treatment.