Dizziness and weakness are mainly associated with exertion and mental factors, upper respiratory tract infection, anemia, cardiovascular and cerebrovascular diseases. Patients can improve through medication, acupuncture treatment, etc. 1. Exertion and mental factors: short rest time, overexertion and mental stress can lead to abnormal expansion or contraction of blood vessels in the brain, resulting in dizziness, weakness and other symptoms. After patients get enough rest and relax, the symptoms usually disappear naturally; 2. Upper respiratory tract infection: viruses enter from the respiratory tract, invade the body and release inflammatory mediators, causing cerebral blood vessels to dilate and spasm, which in turn causes dizziness, weakness, loss of appetite and other symptoms. Patients can take symptomatic treatment drugs under the guidance of professional doctors, and should also drink more water to accelerate the metabolism of the body; 3. Anemia: common such as iron deficiency anemia, due to the reduction of hemoglobin, the oxygen in the blood is reduced, and patients then experience dizziness, weakness, nausea, vomiting and other symptoms. Patients should take ferrous sulfate treatment under the guidance of professional doctors. In addition, they can eat more iron-rich foods, such as animal liver and soy products, to relieve the symptoms of anemia; 4, cardiovascular diseases: for example, hypertension, coronary heart disease, hyperlipidemia, cerebral atherosclerosis and other diseases can lead to blood vessel narrowing, blood flow difficulties, lack of oxygen in the brain and other symptoms, which in turn lead to dizziness and physical weakness of patients. Patients should take appropriate therapeutic drugs under the guidance of professional doctors.