Sympathetic Nervous System

Your voice is a direct reflection of your nervous system. When you are anxious, your sympathetic nervous system activates: breathing becomes shallow, the throat tightens, pitch rises, and pace accelerates.

But the connection works both ways. Deliberately slowing your voice, deepening your breathing, and lowering your pitch sends signals back to the brain that trigger the parasympathetic (calming) response. You are not just sounding calmer; you are actually becoming calmer.