Your blood is not all cells but is predominantly made of a fluid called plasma in which your red and white blood cells are suspended. Also floating in the plasma are cells called platelets and their role is to clot the blood to stop a bleeder. In addition, platelets have proteins called growth factors that would be responsible for the healing and regenerating powers after damage to a blood vessel wall. Your blood is not all cells but is predominantly made of a fluid called plasma in which your red and white blood cells are suspended. Also floating in the plasma are cells called platelets and their role is to clot the blood to stop a bleeder. In addition, platelets have proteins called growth factors that would be responsible for the healing and regenerating powers after damage to a blood vessel wall. Growth factors are the key to the increased healing time and dramatic pain relief of PRP therapy that has proven successful in a variety of conditions as a stand-alone line...