When your electrical system is working normally, the two upper chambers of the heart (atria) contract and pump blood into the two lower chambers (ventricles) in a well-coordinated way. This results in ...

Pokemon Scarlet & Violet players likely already know that Flutter Mane is strong. With Paradox Pokemon now legal in ranked battles, players get to see just how strong Flutter Mane can be with a proper ...

Atrial flutter (AFL) is a type of abnormal heart rhythm, or arrhythmia. It occurs when the upper chambers of your heart beat too fast, causing the bottom chambers to also beat faster than normal.