Your heart is a pump. It moves blood and oxygen-rich nutrients through your body. If you have heart failure, your heart isn't pumping as well as it should. As a result, fluid can build up in the body – most often in the legs and lungs.
Your heart also isn't able to push out enough blood to meet your body's needs for blood and oxygen. It's no wonder then that if you have heart failure, you may tire more easily and feel short of breath.
There are two main types of heart failure:
Ejection fraction is a measure of how much blood the heart is pumping out to the body.
If you or a loved one has heart failure, you're not alone. More than 6 million Americans have heart failure. It's also the leading reason people 65 and older end up in the hospital.
Heart failure is a serious, lifelong condition. But by managing heart failure, people can live normal lives. The hope is to try to avoid emergency or "acute" episodes when someone would need to be in the hospital, and generally improve patients' quality of life and ability to do the things they usually do.