Don’t Stress Too Much, or Your Autonomic Nervous System Will Suffer

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Don’t Stress Too Much, or Your Autonomic Nervous System Will Suffer Try as you might, stress in daily life is ultimately impossible to avoid. Triggers for stress tend to surround you. They can be connected to your family, career, finances, health, dating life, and other factors. What you may not realize, though, is that every time you go through an intense time of stress, your autonomic nervous system (ANS) does more work than you can imagine. And if there is no end to your stress in sight, your ANS can easily become compromised to the point that your adrenals and overall health suffer too.

What is the Autonomic Nervous System? The nervous system is mainly divided into two parts. First is the central nervous system, which includes the spinal cord and brain. Secondly, there is the peripheral nervous system, a part of which is composed of the autonomic nervous system. The autonomic nervous system covers a vast network in the body, including the cardiovascular, genitourinary, GI, ophthalmologic and thermoregulatory systems. Hence, it affects various critical organ muscles and glands. These include the heart, eyes, stomach, esophagus, small intestine, trachea, kidney, bladder, sexual organs, and the adrenal glands. The ANS performs several critical functions within your body on a regular basis. It does so without the need for any voluntary action on your end since its responses are always done reflexively. In fact, with the assistance of the adrenal glands, it kick-starts a response to stress without you having to do anything.

Critical Response: How the ANS and Adrenal Glands Work Together in Times of Stress When you are faced with stress, your brain’s hypothalamus essentially functions as a command center. It starts communicating with the rest of your body through your autonomic nervous system. The autonomic nervous system is made up of five separate systems, with the sympathetic and the parasympathetic system is the most recognized. When faced with a stressful event, the hypothalamus proceeds to activate the sympathetic nervous system by having the autonomic nerves send signals to your adrenal glands, via the sympathomedullary nervous system. This kick-starts your body’s fight-or-flight response to the stress. When this happens, your adrenals start pumping the hormone epinephrine, or adrenaline, into your bloodstream. Once the epinephrine starts to circulate throughout your body, you can expect a number of key physiological changes. First, your heart will start to beat faster than usual. As your pulse rate goes up, so will your blood pressure level. You will also start to breathe more rapidly. The small airways in your lungs will open wide. This allows the lungs to take in as much oxygen as they can with each breath. This extra oxygen will then be sent to the brain to increase your body’s alertness.


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