Heart failure is when the heart does not pump enough blood to meet the body’s needs. As a result, the heart becomes enlarged, stiff, and unable to fill with enough blood because it’s not pumping correctly. A disease or a condition that damages the heart muscle, such as high blood pressure, diabetes, or coronary artery disease, may cause it. When someone has heart failure, they will experience shortness of breath when they lie down at night and may wake up feeling unwell due to shortness of breath with exertion, palpitations, and dizziness. What is heart failure? Heart failure ...Read more