This Week 9 of The Wellness Year Program
Two weeks ago, we reviewed the conditions under which stress causes too much of the hormone “cortisol” to be released in our bloodstream. Cortisol’s job is to replenish the stores depleted by the adrenaline rush. The only problem is that in our modern world, those stores were not used up in the first place. The following is summarized from Dr Bruce McEwen's book, "The End of Stress As We Know It".
For example, say you go into full fight-or-flight response internally when someone steals the parking spot you had patiently been waiting for. Most likely, the next action you will do is to drive around some more. You don’t do anything that would cause you to use a significant number of calories. So you sit in your car awash in extra oxygen and glucose.
If things happen frequently that make you feel frustrated, upset or angry, then lots of cortisol comes out and makes you do all the things that would have been appropriate had you spent lots of calories running away from a predator. For example it turns the glucose in your blood and the muscle in your body to storage forms such as glycogen or fat. This can make you hungry of course, so you look for more food. You may feel too weak to exercise, a way to recuperate from the effort your body thinks you made earlier. When a high cortisol level is a chronic condition, you lose muscle and gain weight.
How does it become a chronic condition? Other animals have this system too. However, the theory goes, other animals naturally stop worrying once the upsetting event is over. Humans have a more developed brain, which allows us to be extremely creative in solving problems. The downside of a more developed brain is that we use perception, thought and emotion to keep the stress response going on indefinitely.
There is also a concern that while memory is enhanced by adrenaline, cortisol actually works to dull memory. Research studies link high cortisol levels to atrophy in the hippocampus and amygdala, two brain areas crucial to learning and memory. These brain areas also play a role in mood, because mood is a result of interpreting present events in the light of past history. So mood may be adversely affected by chronic stress.
So to summarize, adrenaline is released in acute stress conditions, and is well designed to help us cope with acute stress – more energy stores, enhanced memory and immune response. Then cortisol is released which is designed to bring everything back to normal. Unfortunately, our response to an acute stressor rarely requires the added energy reserves, so the action of cortisol harms us by building fat reserves we don’t need. This would not be so bad except in cases where the stressor won’t go away, or in cases where our brain, or our surroundings cause us to remember the stressor and reactivate the response multiple times. These conditions of spending too much time in a high cortisol state exist in many of our lives.
What can we do in the short term, without making drastic changes in our lives? Here’s a list of things that in themselves decrease cortisol levels and help avoid the harmful effects of stress.
1. exercise
2. follow a low fat highly nutritious diet
3. do not eat a large meal late at night
4. safeguard your sleep (get enough, good quality sleep)
5. avoid alcohol (especially as a way to cope, relax, etc…)
6. connect regularly with supportive people in your life – maybe friends and family and perhaps a support group
7. do not expose yourself to unnecessary stressors – my pet peeve is TV, I might as well admit it. My opinion is that there is too much violence, and the ads are carefully designed to make you feel anxious about being inadequate so they can get you to buy something. There is a pervasive atmosphere of anxiety and distraction from the things that may really need to change in your life.
8. take time on a regular basis to think about your life and to check in with yourself – what are my goals, my values? How are they being honored? At work, ask yourself whether you have appropriate control given the demands placed upon you, and whether your work is in line with your values and brings great satisfaction into your daily life. This seems unattainable to many people – don’t give up just yet!!!
Next week, I will address the topic of behavior change and of keeping learning alive. I hope I have inspired all of you (and myself!) to make exciting positive changes in our lives. The problem is that typically, about 90% of what we hear or read is forgotten after only a few short weeks, and our best intentions fall through. So tune in next week, and if these words elicit questions, thoughts or comments on your part, please write me!!
All the best,
Myrto
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