Abby Lee Miller rose to fame as the head coach on ‘Dance Moms’ Kelsey Lentz is a former assistant editor at PEOPLE with over four years of experience working in the digital media industry. She left ...

Ventricular fibrillation (VFib or VF) and ventricular tachycardia (v-tach or VT) are two types of heart arrhythmia that occur in the heart’s lower chambers, called the ventricles. The ventricles ...