Blood viscosity refers to the thickness and stickiness of blood, which affects its ability to flow through the circulatory system. Some synonyms for blood viscosity may include blood thickness, blood density, blood consistency or blood texture. These terms describe the physical properties of blood and its ability to flow efficiently through the body, providing oxygen and nutrients to organs and tissues. High blood viscosity can lead to circulatory problems such as clotting and increased risk of heart disease, stroke or other health problems. Lowering blood viscosity can be achieved through lifestyle changes such as regular exercise, healthy diet, and medication.