Get to know your nervous system
In today's fast-paced world, many of us live with our nervous systems in a constant state of high alert. The demand of modern life keeps our bodies prepared for action, often at the expense of our health and wellbeing.
The nervous system consists of two major divisions the CNS - Central Nervous System, and the PNS - Peripheral Nervous System, and two subdivisions, the Somatic Nervous System, which controls your voluntary movements, and the Autonomic Nervous System, which manages involuntary functions like heart rate, digestion, and breathing.
The Autonomic Nervous System further divides into two complementary branches that operate like a seesaw. The Sympathetic Nervous System—often called your "fight-or-flight" response and the Parasympathetic Nervous System—your "rest-and-digest" response.
When you’re in the "fight-or-flight" your heart rate increases, blood pressure rises, stress hormones flood in your bloodstream, muscles tense for action, and non-essential functions like digestion slow down. However, when your parasympathetic nervous system dominates, your body enters a profound state of restoration and balance. This state triggers a cascade of physiological responses designed to repair, regenerate, and rejuvenate your entire nervous system.
When in "rest-and-digest" your cardiovascular system calms your heart rate and blood pressure to optimal levels. Your digestive system receives increased blood flow, allowing for proper breakdown and absorption of nutrients while supporting the elimination of waste. Your immune function improves and it’s ready to activate its defence mechanism.
Beyond these physical, the parasympathetic state affects your mental clarity, as stress hormones decrease, it allows for better cognitive function and decision-making. Emotional processing becomes more balanced, with greater access to positive emotions. Sleep quality deepens, further enhancing your body's healing capabilities.
Did you know?
Recent neuroscience research conducted at Boston University School of Medicine demonstrated that just 20 minutes of yoga asana practice can increase GABA levels in the brain by approximately 27%. GABA is an inhibitory neurotransmitter that essentially acts as your brain's natural brake pedal. Low GABA levels have been associated with anxiety disorders and insomnia, while healthy GABA function promotes feelings of calm and emotional stability. Therefore, the research suggests that yoga has a profound effect on your nervous system that goes beyond simple relaxation, it can actually change your brain chemistry in measurable ways that support long-term relaxation.
