Cracking your back stretches squishy capsules on the outer edges of the vertebrae around joints called facet joints. Stretching these capsules allows the synovial fluid inside them to have more space to move around, releasing pressure on your back joints and muscles and moving your facet joints.
Is cracking your back good for your back?
In moderation, the answer is no. Studies have shown that occasionally cracking your back can help relieve pressure in your spine without adverse effects. However, when done habitually, popping can cause excessive wear on your joints and potentially lead to premature breakdown.
Why is cracking your back good for you?
For starters, you're relieving pressure against your spine. Cracking your back can also release endorphins, which is the feel-good hormone. The pituitary gland creates endorphins to manage pain throughout the body. When you crack your back and release these endorphins, you'll experience a sense of satisfaction.