MEDICAL ANIMATION TRANSCRIPT: If you've been diagnosed with heart failure, it's important to control your symptoms. Heart failure, also called congestive heart failure, or CHF, is a lifelong condition in which your heart continues to work but not as well as it should. Your heart can't pump enough blood and oxygen to meet the needs of your body. Excess fluid builds up in the lungs, legs, and other body tissues. The symptoms of heart failure include shortness of breath, chronic coughing or wheezing, swelling of the legs, feet, or abdomen, weight gain, feeling tired all the time, nausea or lack of appetite, heart palpitations, difficulty lying flat due to feelings of suffocation, and having to sit up to breathe. Over time, heart failure weakens your heart and can shorten your life if not well managed. Fortunately, you can help control your symptoms by following your doctor's instructions, adopting a heart-healthy lifestyle, and staying aware of changes in your symptoms. Following the inst...