Dear Savvy Senior,What can cause dizziness in older adults? I have dizzy spells from time to time but I’m not sure what causes it or what I should do about it.--Dizzy DonnaDear Donna,Whether it’s a moment of lightheadedness or the room whirling sensation of vertigo, dizziness can be very unsettling. As many as 30 percent of people older than 60 experience dizzine...