American College of Cardiology Mar 31 2025 People with heart failure have long been advised to limit the amount of fluids they consume each day to help reduce congestion, or the buildup of fluid in the lungs and extremities, but that advice provides no benefit, according to a study presented at the American College of Cardiology's Annual Scientific Session (ACC.25). Heart failure occurs when the heart becomes too stiff or too weak to effectively pump blood throughout the body. Congestion is a