@altabiznet Mobility has little or nothing to do with the risk of clots during episodes of AF. The risk lies at the rate of a whopping 90% from poorly flushed blood in the small pouch at the extreme left of the left atrium known as the 'left atrial appendage'. Pooling blood in the LAA happens when the atrium is fluttering or fibrillating. When a patient is in the paroxysmal and persistent and long-standing-persistent stages, not to mention if their AF is 'permanent', clots can form there soon after the arrhythmia commences, and they can be dislodged at any time, either when the heart resumes normal sinus rhythm (NSR) or just on happenstance. Those clots will then travel to the brain, the lungs, or to the heart's own blood vessels where they can lodge and cause tissue death. Believe me, you do not want a heart attack, clots in your lungs, or a stroke because of a clot in your brain.