Only the Avatar was the master of all four elements. Only he could stop the ruthless Fire Nation from conquering the world. But when the world needed him most, he disappeared. Until now... On the South Pole, a lone Water Tribe village struggles to survive.
Heart failure, sometimes known as congestive heart failure, occurs when your heart muscle doesn't pump blood as well as it should. Certain conditions, such as narrowed arteries in your heart (coronary artery disease) or high blood pressure, gradually leave your heart too weak or stiff to fill and pump efficiently.
Signs and Symptoms. Heart failure is a condition in which the heart fails to function properly. The terms heart failure and congestive heart failure (CHF) don't mean that the heart has actually failed or stopped but mean one or more chambers of the heart fail to keep up with the volume of blood flowing through them.