Compare Springfield, MO Demographics To Other Cities. Springfield population breakdown by race. In Springfield, 4.1% of people are of Hispanic or Latino origin. Please note: Hispanics may be of any race, so also are included in any/all of the applicable race categories above.
Atrial fibrillation (AF or A-fib) is an abnormal heart rhythm characterized by rapid and irregular beating. Often it starts as brief periods of abnormal beating which become longer and possibly constant over time. Most episodes have no symptoms.
Atrial fibrillation (also referred to as AF or AFib) is the most common type of irregular heartbeat. It is found in about 2.2 million Americans. Its frequency increases with age. If you have AF, the electrical impulse does not travel in an orderly fashion through the atria.ou may have atrial fibrillation without having any symptoms at all. If you have symptoms, they may include: 1  Heart palpitations (a sudden pounding, fluttering, or racing feeling in the chest). 2  Fatigue or lack of energy. 3  Dizziness (feeling faint or light-headed).