单词	A-fib
释义	A-fib noun ˈā-ˈfib  variants or less commonly AFib or Afib : atrial fibrillation Word History Etymology by shortening First Known Use 1988, in the meaning defined above Medical Definition A-fib noun ˈā-ˈfib  variants also AFib or Afib : atrial fibrillation 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 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
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