There are many causes of dizziness and weakness, the common causes are mainly the following: First, hypertension, early without characteristic clinical manifestations, with the increase in blood pressure can cause dizziness, headache, weakness, nausea and other symptoms, through regular use of antihypertensive drugs to control blood pressure stable can improve the symptoms, usually need to closely monitor the blood pressure situation. Second, viral cold is due to viral attack, the main clinical manifestations of dizziness, limb pain, weakness, sore throat, fever and other symptoms, taking antiviral drugs such as Lotus Qing Wen capsule, antiviral oral solution and other drugs, can symptomatically relieve the symptoms. Third, cerebral artery insufficiency is caused by insufficient blood supply and brain dysfunction, which mainly manifests as dizziness, weakness, memory loss, inattention, etc. Taking drugs such as Ginkgo biloba and Chuanxiongzin can effectively improve the symptoms.