What causes cerebral arterial insufficiency?

Cerebral artery insufficiency refers to various reasons caused by the brain's blood supply can not meet the needs of mild brain dysfunction, there is insufficient cerebral blood supply in the elderly more likely to occur Alzheimer's disease and brain death. Generally caused by the following conditions: 1, cerebral atherosclerosis. Long-term hypertension, hyperlipidemia, hyperglycemia, smoking, excessive drinking and other bad habits, can cause increased blood viscosity, vascular endothelial damage, vascular wall shows plaque, resulting in narrowing of the cerebral artery, resulting in reduced blood supply to the brain. 2, cervical spondylosis. Two vertebral arteries from both sides of the cervical spine up to the brain, so cervical spondylosis can oppress the vertebral artery, resulting in insufficient blood supply to the brain. 3. There are also some middle-aged and elderly people suffering from heart diseases, such as heart failure and myocardial infarction, resulting in decreased cardiac ejection capacity and insufficient blood supply to the brain.