Cerebrovascular disease or known as "stroke" refers to a problem with the circulation of blood in the blood vessels of the brain. A blockage with effects lasting less than 24 hours is referred to as a transient ischemic attack. A complete blockage with long-term effects is referred to as a cerebrovascular thrombosis (clot) or accident or a stroke. Sometimes, a blood vessel in the brain can burst resulting in long term effects.It can be prevented by simply quitting smoking, regular physical exercise, eating heart healthy diet with low fat content, maintaining healthy weight or avoiding obesity, controlling blood pressure, controlling hypertension, avoiding anger or chronic stress..