The most common cause is poor sleep at night, poor sleep quality, dreaminess and wakefulness, which can lead to weakness and dizziness of the limbs the next day. 2. It is recommended that the patient should check the hemoglobin level and eat more red dates and other foods in daily life, which have the effect of replenishing blood. 3. 5, some cerebrovascular diseases, can also appear weakness of the limbs, dizziness, especially when the blood supply of the posterior circulation is insufficient, the patient can also be accompanied by nausea, vomiting and blurred vision or blurred vision symptoms, if necessary, you can check the head CT or intracranial segment of the vascular ultrasound.