What Happens in the Nervous System During Conscious Breathing
When you change your breathing, you are not “just relaxing”. You are actually interacting with your autonomic nervous system. The autonomic nervous system has two primary branches: Sympathetic (mobilisation, alertness, stress response) Parasympathetic (rest, digestion, recovery) Breathing is one of the few autonomic functions we can control on purpose. This gives us a direct way to influence our body's regulation. When you breathe slowly and steadily, and focus on making your exhales longer, your brainstem gets the message that your body is safe and can relax. For example, individuals practising diaphragmatic breathing exercises frequently report a reduction in anxiety and a sense of calm. In such cases, heart rate variability increases, vagal tone improves, and your system slowly moves out of defensive states. Fast, shallow breathing does the opposite. It can reinforce mobilisation, even in the absence of a real threat. This is why breathwork is more than just relaxation. It actu...
