Feeling light-headed and drowsy may be due to overwork, cold and fever, cerebrovascular disease, blood pressure or blood sugar abnormalities.
1. Excessive fatigue: Long-term late night or poor rest will cause the brain not to get enough rest, and the symptoms of light-headedness and drowsiness will appear.
2. Cold and fever: the body is infected by bacteria or viruses after the cold and fever, due to the release of inflammatory mediators on the central nervous system stimulation, will make people feel light-headed and drowsy.
4. Cerebrovascular disease: for example, patients with cerebral hemorrhage or cerebral infarction, bleeding in the brain or vascular blockage will lead to ischemia and hypoxia of brain tissues, which will also make people feel light-headed and drowsy.
5. Abnormal blood pressure or blood sugar: Lower blood pressure will cause insufficient blood supply to the brain, higher blood pressure will lead to higher intracranial pressure, high blood sugar will cause damage to cerebral arteries, and low blood sugar will affect the energy supply to the brain; these abnormalities of blood pressure and blood sugar may make people feel lightheaded and drowsy.
Feeling lightheadedness and drowsiness may also be caused by other reasons, it is recommended that patients seek medical advice in a timely manner, under the guidance of a doctor to identify the causes of targeted treatment.