And also the water molecules will essentially be attracted to these negatively charged groups on the glycosaminoglycans. And so once the water is basically absorbed back into this area, that will basically cause these agricultants to basically spring back into their initial position. And so together, this process allows the absorption of those different types of impact forces that prevents damage and it also allows the lubrication of the area. And this is exactly what happens inside our joints. Now, a medical condition known as osteoarthritis basically causes the breakdown and the degradation of these Agrican molecules and that's exactly what causes the pain that is due to osteoarthritis. So we see that polysaccharides are very important molecules.