The Best Years in Life) Blood has a very important job. It must flow smoothly and uninterrupted throughout our bodies for our entire lifetime. However, sometimes this smooth and constant blood flow is, indeed, interrupted by the formation of a blod clot. Sometimes, blood clots can be our friend. For example, if we receive a cut or an injury, blood clots form, in order to prevent loss of blood. But, blood clots can also be dangerous and even life threatening when they interrupt the constant flow of blood. Read More.