And this highland cartilage is made up of predominantly collagen fibers. So that means it's a very strong type of cartilage. And our highland cartilage is the most common type of cartilage in the body because it basically lines our bones where the bones are connected to one another via joints. So it's the highland cartilage that is found around our bones and around the joints. And this highland cartilage reduces the friction between bones. It also absorbs some of that shock as a result of the forces that we experience due to our daily movement.