Nerves are actually composed of 50–80% fascia. They can develop adhesions to their surrounding tissues or even within their internal structures. Since nerves supply all the information that the brain uses to control your body, the brain protects this information at all costs. This causes underuse or spasms in surrounding muscles as well as pain. Gentle manipulations can free the nerves, allowing them to stretch again and restoring this important information source to the brain.