Having apoE-4, therefore, may increase ones chances of a poor outcome following any brain injury. Scientists studied 414 men participating in the National Heart, Lung, and Blood Institutes Twin Study. With MRI, you're going to catch more of the strokes and white matter disease. We can get a better idea of what's going on in the brain. In silent strokes, people don't have any of the classic warning signs such as sudden headaches, dizziness or loss of motor skills.
Silent strokes occur when smaller blood vessels in the brain are blocked or rupture.
Silent strokes aren t as damaging, at least initially, as strokes that occur when the carotid arteries in the neck are blocked or burst. But silent strokes do take their toll over time. When the smaller vessels are unable to deliver oxygen and blood to the brain, cells die. Over time, brain cells that control functions such as memory and motor skills die off, leading to difficulty in memory, concentration and even walking. The researchers do not recommend screening people for apoE-4.