Dizziness and weakness of the limbs have the following causes: 1, it may be due to the existence of long-term fatigue or prolonged late night, all-nighters, etc., because the patient itself does not get sufficient sleep, the brain does not get effective rest, there will be dizziness and weakness of the limbs; 2, it may be due to the existence of hypertension, arterial vascular obstruction, atherosclerosis, myocardial infarction, myocarditis If the symptoms are serious, the patient can go to the hospital as early as possible to confirm the cause of the disease and then carry out treatment to avoid delaying the patient’s condition.