Engracia B. Gill, LCSW MBA

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February 17, 2021 by Engracia Gill

Regulation of the Central Nervous System: Why Is It Important?

Have you ever driven a sport’s car?  If you have then you know the exhilaration of pushing the car beyond normal speed limits, feeling it respond.   Also, you have noted how supple that car is when needing to break.  However, in that experiment have you paid attention to your heart rate and the effect of driving a race car on your nervous system?  Maybe you have, maybe you have not…  Maybe you don’t need to drive a race car to understand that phenomenon.  Maybe you can just imagine driving one!

Well, if you paid attention, you would know that your heartbeat accelerates beyond a certain level through the simple fact of accelerating fast.  There is an edge of excitement because of the mastery demanded to drive a faster car.  Your body registers when you accelerate rapidly and when you decelerate rapidly.  The reason your body is sensitive to speed is of the potential dangers that come with driving fast.  At lower speeds, your heart rate stays more within manageable levels and rates due to the different neurochemicals that govern lower speeds and lower heart rates.   The central nervous system (CNS) “likes” a certain window of tolerance that protects the heart from speed hikes and it works comfortably in a nice middle ground between acceleration and deceleration.

 

The window of tolerance which is the preferrable bandwidth that the CNS likes to operate in akin to driving a Prius.  A Prius, you say!  Yes, a Prius, a car that unlike a race car does not expand energy rapidly when you push on the accelerator (the accelerator pedal being akin to the sympathetic part of the nervous system) nor does it expand a lot of energy when you push on the decelerator pedal (the brake pedal being the parasympathetic part of the nervous system that puts on the breaks and allows you to go to sleep at night). There is a perfect balance between how much energy is expanded on a Prius, not too fast and not too slow, and a perfect counterbalance on how much energy is decelerating, like a wave pattern with the top of the wave cresting at a certain time in equal measure with the wave pattern crashing in the window of tolerance.

The central nervous system is calibrated that way to ensure that the heart does not accelerate too fast nor decelerates too fast because instead of waves the pattern in that case would become a pattern of spikes on the uptake and spikes on the downtake in equal measure to the speed of acceleration.  The human and mammalian heart does not do well with spikes.  It requires a whole set of fight/flight neurochemicals because it is linked to the amygdala, the alarm system of the body that engenders a fight/flight/freeze response to danger.  Those neurochemicals are adrenaline, cortisol, epinephrine and nor-epinephrine.  If the heart rate climbs beyond the perfect window of tolerance, the central nervous system will monitor how it climbs.  If the heart climbs too high (i. spikes too high), it endangers the workings of the heart system and the central nervous system clams it spike by closing the climb up with cortisol, and that is where everything in the central nervous system goes into territory of trauma reactions and vortexes.  So I have designed a video series of regulation tools to help every part of the central nervous system bring the heart rate back within the window of tolerance.  I have made available on my website.  Please visit www.engraciagill.com to find an audio or video version of the beautiful tools that we know help you stay in the window of tolerance.

Filed Under: Blog, Well Being

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Engracia B. Gill, LCSW, MBA
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