Silent Stroke

Obvious changes in the ability to think and move normally can come from strokes that block major brain blood vessels, Gale says. Mild memory problems can also develop gradually after silent strokes that affect smaller blood vessels. These changes in brain function, which can range from mild to severe, are called vascular cognitive impairment.

The brain is especially vulnerable to blocked or reduced blood flow depriving it of oxygen and essential nutrients. People with memory loss are at greater risk for stroke. And forgetfulness may be an early warning sign of stroke,