Do you ever wonder what that crunchy sound in your back is? If you hear “crunching” in your joints, you are most likely experiencing crepitus. This crunching, grating, or popping sound can be cause by multiple factors, such as release of small pockets of air.
Research is beginning to dispel some of the mysteries surrounding the human body, particularly how the body regenerates tissue. In the early 1990s, scientists discovered small sections of RNA called microRNA or miRNA. This discovery allowed them to see more precisely how DNA functions in our bodies and the role these tiny molecules play in the process of regeneration of tissue.
The complex structure of ligaments and tendons that support our joints provides stability. They are composed of collagen, the most abundant protein in the body. Their tough, collagenous structure give the joint strength. This structure, however, also causes these tissues to have poor blood supply, making the joint prone to chronic conditions.