We often forget that our bodies run on the most complex electrical grid ever created. When you feel a sudden "glitch"—like a thumb that won't grip or a foot that feels heavy—it is rarely just a sign of a long day. It is a signal that your internal bandwidth is being throttled. If you are searching for nerve and muscle testing in Brentwood, you are looking for a professional system audit. Numbness and tingling are the "spinning wheel" icons of your nervous system. At California Sports and Rehab, we don't just guess where the connection is failing. We use advanced diagnostics to find the exact "short circuit" in your hardware. We believe that you cannot optimize your performance if you haven't mapped your wiring. Precision testing is the only way to get your body back to its peak operating speed.