THE ENDOCRINE SYSTEM: AND YOU!!!


Here are some more notes that I sent my parents last year, while they were in lockdown. This one’s about the endocrine system.
The endocrine system, generally speaking, uses hormones to give your body certain commands. It’s like another control system, like the brain and the CNS, but the endocrine system does things a little differently. A lot differently. To cluster things up even more, the endocrine system is involved in about every other system.
It should be noted, that when we talk about the various ‘systems’ of the human body, these are all really just arbitrary designations of convenience. It’s really all one system, working together, at the same time. Hopefully.
Well, this one is a little more wordy, and has fewer pictures. But it does have a more aggressive sense of humor. What can I say? The human body is hilarious! Also, these notes that I wrote to my parents should in no way be considered a reliable source of anatomy and physiology. I did get a lot of things right; there’s nothing in here that’s way-off-base wrong, as near as I can tell. But when I studied the endocrine system further, and continue to do so, I realize that it’s even more complicated than the smart-ass jumble of words that follow. So, hopefully you can learn a little something about the endocrine system, and get a few laughs, too.

Fight or Flight in America as a Sociological Phenomenon

Crisis Fatigue

The link above is an interesting article. The physiological phenomenon known as ‘fight or flight’ exists in most living creatures, and is deeply ingrained into every human being. It’s a crucial component of the survival instinct, and has been for hundreds of thousands of years, existing as well as in our progenitor ancestors.

As simply as I can put it: Your 5 senses and your intuition will perceive a threat. This gets crunched in your consciousness, a poorly understood concept. This threat then gets sent to your amygdala, a part of your brain, for verification. This triggers a response in another part of your brain, the hypothalamus. The hypothalamus wears many hats (and we really don’t know how), but it kind of serves as a command center for a lot of things. In this sense, it triggers the fight or flight mechanism. Admiral Hypothalamus will activate your sympathetic nervous system, a part of your electrical wiring, which fires up your adrenal glands, which generally have about 8 cups of coffee in them already. Your adrenal glands will freak out and push the panic button, and secrete a number of hormones, mainly adrenaline, cortisol and norepinephrine. The adrenaline will ramp up your blood pressure and your pulse, and accelerate the actions of your lungs and muscles. The cortisol will adjust your glucose (stuff you get from food) to provide a burst of energy. The norepinephrine will flood your brain, increasing alertness and response times. Every other system takes a back seat, including rational thought. At this point, you’re ready to kick some ass. This goes back to the time when our ancestors had to face off grizzly bears. We don’t have to do that anymore (except for those idiots in Yellowstone who want a better picture), but fight or flight is very much with us today, in response to both physical (a mugger, a mean dog, road rage) or emotional (fight with your spouse, boss wants to see you, the principal called) experiences. Eventually, the response will abate, and you are left exhausted and weak.

Problems happen when people are under constant fight or flight, and the response does not get a chance to wear off. This will result in anxiety, depression, PTSD, heart problems, or all of the above.

I know nothing of sociology. However, this article posits the idea that American society has been living under a steady, constant fight or flight response ever since 2020 started. We are now suffering from the effects of 3 social phenomenons that are causing Americans a huge amount of stress. It started with the emergence of a virus we thought we may be able to control, but we were very wrong. Then, racism reared its ugly head once again, when George Floyd (and, let’s face it, he’s not the only one) was murdered by a police officer. This has triggered a massive social disruption of anger and violence. Perhaps worst of all, the federal leadership (dammit, GOP, I hate to say I told you so… I take no glee in his failures) has been fully exposed as incompetent, dysfunctional, and unwilling or unable to rise to these challenges. In fact, our President’s behavior has gotten worse, and it is clear that he is in way over his head. In the meantime, the violence continues, and the pandemic has now killed 111k Americans. At this point, things do not show any signs of significant improvement or healing. As with an individual, problems will arise when the fight or flight response does not get a chance to settle down. We are seeing that now, in the hatred, anger, depression, isolation, anxiety and general “I’m pissed off today” attitude in nearly every American. If things do not settle down, the damage to society, as with an individual, will be massive, and will take longer to heal than we can imagine.

Well, I’m just babbling instead of doing my homework. Sorry for the long post. I better hit the books. Wash your hands!