A nurse takes your blood pressure at your annual physical. The numbers are recorded and the checkup continues. But do you know where on the blood pressure chart your levels are? Are they healthy? Too low? Too high, meaning you have hypertension? If you … Read More
disease of the heart
About half of all heart failure patients die suddenly from cardiac arrest. Cardiac arrest is caused a deadly heart rhythm called ventricular fibrillation.
The heart has four chambers: two upper chambers called atria, and two lower chambers known as ventricles. The atria pump blood into the ventricles, and the … Read More