Now, as soon as that force, as soon as that pressure is released, these water molecules will rush right back. Why? Well, because water will tend to move down its concentration gradient from a high to a low concentration. 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.