Your nervous system is like an information superhighway, carrying messages and instructions from your brain. Those messages travel down your spinal cord and then out through your nerve fibers, reaching every one of your organs and body parts. In turn, your body sends messages back to the brain via the nerves – telling it when you’ve touched something hot, for example.
Sometimes swelling, toxins, diseases or tumors can pinch or compress your nerves, interrupting the flow of signals. This can interfere with your body’s ability to function normally.