Atrial Fibrillation https://www.jacc.org/doi/10.1016/j.jacc.2024.07.014 Atrial fibrillation, an irregular heartbeat, is 3 times more common than previously thought, according to a new study 1 in 4 Adults Over Age 40 May Have AFib Without Knowing It: How To Recognize Signs & Symptoms https://www.yahoo.com/lifestyle/heart-condition-3-times-more-212849796.html