👉 Heart fluid, also known as pericardial fluid, is a clear, colorless liquid that fills the space between the heart and its surrounding pericardium, acting as a lubricant to reduce friction during the heart's rhythmic contractions. This fluid, produced by the pericardium, helps ensure smooth and efficient heart movements, preventing the heart from sticking to itself as it beats. Normally, a small amount of pericardial fluid is present, but excessive accumulation can indicate serious conditions like pericarditis or heart failure.
