Biofluid mechanics is the study of how fluids, such as blood and interstitial fluid, move within biological systems. This field combines principles from fluid dynamics and biology to understand how these fluids interact with cells and tissues. It plays a crucial role in areas like cardiovascular health, where understanding blood flow can help in diagnosing and treating diseases. Researchers in biofluid mechanics often use mathematical models and simulations to analyze fluid behavior in various conditions. This knowledge can lead to advancements in medical devices, such as artificial hearts and stents, improving patient outcomes and enhancing our understanding of human physiology.