There are actually many kinds of stroke precursors in the elderly, and families should pay more attention to them in daily life: 1. dizziness – repeated occurrence of instantaneous vertigo in middle-aged and elderly people, sudden dizziness and dizziness, visual rotation, and return to normal after a few seconds, may be transient cerebral ischemic attack, which is commonly a precursor of stroke, and should be treated early to prevent stroke from occurring. 2, numbness of the limbs – middle-aged and elderly people with abnormal sensation of numbness of the limbs, in addition to cervical spondylosis, diabetes, such as accompanied by headache, dizziness, head heavy, tongue swelling and other symptoms, or a history of hypertension, hyperlipidemia, diabetes or cerebral arteriosclerosis and other diseases, should pay more attention to be alert to the occurrence of stroke. 3, sudden darkening of the eye – sudden darkening of one eye, unable to see anything, after a few seconds or dozens of seconds will be completely back to normal, medically known as one-time black haze in one eye, because of cerebral ischemia caused by retinal ischemia, is another signal of stroke. 4, the cause of unknown falls – due to cerebral vascular sclerosis, causing cerebral ischemia, motor nerve failure, can produce ataxia and balance disorders, and prone to falls, is also a symptom of stroke aura. 5, slurred speech – when the cerebral blood supply is insufficient, so that the body’s motor function of nerve failure, one of the common symptoms is a sudden speech or slurred speech, or even can not speak, but the duration is short, up to 24 hours, should be taken seriously. 6, yawning constantly – if there is no fatigue, lack of sleep and other reasons, continuous yawning, which may be due to cerebral arteriosclerosis, ischemia, causing chronic ischemia and hypoxia of brain tissue, is a precursor of stroke patients. 7, mental changes – such as drowsiness, once the middle-aged and elderly people appear unexplained sleepy drowsiness phenomenon, to pay great attention to, is likely to be the precursor of ischemic stroke. Mental state changes in character, such as becoming silent, or talkative and impatient, or brief mental decline, are related to cerebral ischemia, which may be a precursor of stroke. 8, nosebleeds – nosebleed symptoms in middle-aged and elderly people may be an alarm of impending stroke in hypertensive patients. After medical observation, excluding trauma, inflammatory factors, hypertensive patients in repeated nosebleeds, may occur cerebral hemorrhage. Many nosebleeds are caused by unstable blood pressure and can increase the chance of stroke if not prevented.