People who feel faint, dizzy or lightheaded when standing up may be experiencing a sudden drop in blood pressure called orthostatic hypotension. Now a new study (N=11,709) says middle-aged people who experience such a drop may have a greater risk of developing dementia or stroke decades later.

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People who feel faint, dizzy or lightheaded when standing up may be experiencing a sudden drop in blood pressure called orthostatic hypotension. Now a new study (N=11,709) says middle-aged people who experience such a drop may have a greater risk of developing dementia or stroke decades later.