medical Definition of A-fib
- A-fib occurs when the top chambers of the heart, responsible for bringing blood back from the rest of the body, start to flutter.
- —Forbes, 13 July 2009
- Individuals who walked two to three miles per hour … had a 32 percent lower risk of developing AFib, whereas those who walked more than three miles per hour (moderate pace) lowered their risk by 41 percent.
- —Food & Fitness Advisor, Nov. 2008
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