Think about it...What is really happening to my neck when I crack it myself? I've heard it a lot. People say "I can adjust my own neck" or "I can pop/crack my own neck or back" Did you know that you can do that every 10-15 minutes? The sound that is heard is called a cavitation. It is essentially a gas bubble popping under negative pressure in a closed joint space. When "popping" a joint you are really only creating a noise and risking muscle strain and evening aggravating yo