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 ...

Though famous for their mid-air hovering during hunting, tiny hummingbirds have another trait that is literally telltale: males of some hummingbird species generate loud sounds with their tail ...

Many adults with obstructive hypertrophic cardiomyopathy (oHCM) taking mavacamten experienced new atrial fibrillation or flutter, new-onset heart failure, and frequent acute care use within months of ...

Flutter is a form of aeroelastic instability that manifests itself with oscillations (see Figure 1) which either grow, and eventually lead to a structural failure, or remain at some constant-amplitude ...

Toned abs are a nice perk, but core exercises do so much more for you. Whether or not you realize it, a strong core is essential for pretty much all your daily habits. "You need your core to be solid ...

Flutter kicks deserve some long-overdue credit. The exercise isn't just for ab-sculpting, despite its reputation. Yes, your abs are working hard, but so much more is going on that doesn't get talked ...

Atrial flutter is a type of irregular heartbeat, or an arrhythmia. It causes your heart to beat too fast. Atrial flutter doesn't always have symptoms, but it can sometimes have serious consequences if ...