Showing posts with label why zebras don't get ulcers. Show all posts
Showing posts with label why zebras don't get ulcers. Show all posts

Sunday, December 4, 2016

Final Notes on Why Zebras Don't Get Ulcers

Were any previous ideas you had on the subject changed, abandoned, or reinforced due to this book? How is the book related to your own path as a yoga therapist?



I am going to answer these questions together

Chapter 1 – Why Don’t Zebras Get Ulcers
- I never really thought about us humans having physiology that doesn’t quite match up to our experiences in the modern world before this book.  I can use this explanation when talking to clients in yoga therapy.  I already have heard myself talk about it any times since I started reading the book last April.
- I never had heard the terms psychological and social disruptions are the one of the ways we get upset
- New to me is the definition of a stressor and stress response. I will use it with my clients.
“A stressor is anything in the outside world that knocks you out of homeostatic balance, and the stress reponse is what your body does to reestablish homeostasis.” P,6
- I never had heard anything about Selye before
- I like the simple statement on p. 8 “If stressors go on too long, they can make you sick.” I will use that with my students and clients.
- I found this interesting on p. 11 “With sufficiently sustained stress, our perception of pain can become blunted.”
- Also of great interest: “. . . during stress, shifts occur in cognitive and sensory skills…” p.12
- Problems with constant stress p,13 “the stress-respinse can become more damaging than the stressor itself, especially when the stress is purely psychological” and “If you constantly turn off long-term building project, nothing is ever repaired,”
p. 16 “If you repeatedly turn on the stress response or if you cannot turn off the stress-response at the end of a stressful event, the stress-response can eventually become damaging.”
p. 16 “chronic or repeated stressors can potentially make you sick or can increase your risk of being sick.”

Chapter 5 – Ulcers, The Runs, And Hot Fudge Sundaes
- There is this idea that we should lose our appetite when we are stressed but I always just eat more and more. I find interesting ideas of hyperphagic and hypophagic different people have different reactions in their eating to stress and it depends on their relationship to food.  I will use this with my clients and students when talking about mindful eating.
- “. . . ulcers are not formed so much during the stressor as during the recovery. This predicts that several periods of transient stress should be more ulcerative than one long, continuous period, and animal experiments have generally shown this to be this case.” P.89

Chapter 6
- Interesting this whole story of the dwarfish ending with the boy with the nurturing nurse. This is helpful to talk to people on how important nurturing and support is.

Chapter 7
- Very interesting about the sex organs of the hyena. I am not sure how I will use this as a yoga therapist accept anecdoctally.

Chapter 8 – Immunity, Stress and Disease
- Interesting how during stress first immunity is enhanced and then reduced. I will use this explanation with clients.

Chapter 9 – Stress and Pain
- I thought this was very helpful about pain
p. 187 “Pain is useful to the extent that it motivates us to modify our behaviors in order to reduce whatever insult is causing the pain, because invariability that insult is damaging our tissues.”
p.189 “A striking aspect of the pain system is how readily it can be modulated by other factos.  The strength of a pain signal, for example, can depend on what other sensory information is funneled to the spine at the same time…”
p,191 – Interesting to me about slow fibers and fast fibers. I find this useful when talking to clients
“The pain physiologist David Yeomans has framed the functions of the fast and slow fibers . . . fast fibers are about is getting you to move as quickly as possible (from the source of the piercing pain). What the slow fibers are about is getting you to hunker down, immobile so you can heal.”
- pain is subjective
- there is a real thing called stress-induced analgesia this was show in hot plate test in rats  but there is also stress induced hyperalgesia like in the dentist

Chapter 10– Stress and Memory
These were the concepts that I related the most to in Chapter 10. I think especially when working with yoga nidra it can be important to talk about the different parts of the brain.
- “memories can be transformed between explicit and implicit forms of storage.” P. 205
- importance of cortex and hippocampus
- think of the cortex as your hard drive where your memories are stored
- think of the hippocampus as the keyboard
- excess of stress and/or glucocortoids can disrupt the functioning of the hippocampus
- major depression is associated with a smaller hippocampus
- glucocortoids damage the human hippocampus
- grandmother neurons
- p.212 “So stress acutely causes increased delivery of glucose to the brain, making more energy available to neurons and therefor better memory and retrieval.
- Amygdala
- inverse U relationship
- Cushing’s syndrome
- some findings show stress disrupts executive function
- higher glucocorticoid level enhance long term depression


Chapter 11 - Stress and a Good Night’s sleep

I suffer from middle insomnia so all these concepts were very interesting to me.  I taught a workshop using these concepts a couple months back. I xeroxed the chapter and we went through it and it was very helpful.
Sleep is not a monolithic process
There are different types and stages of sleep: shallow (stages 1 and 2), deep sleep (stages 3 and 4) aka slow wave sleep, REM  and brain works differently in different stages of sleep
90 minute cycle: shallow, slow wave, REM and the back up gain 
Frontal Cortex is the most recently evolved part of the human brain and is disproportional large in primates
Frontal cortex like super ego - helps you do the harder rather than the easier thing (helps you think sequential as opposed to bouncing all over the place)
Frontal cortex disciplines and inhibits the emotional limbic system
During REM sleep, the metabolism in the frontal cortex goes way down, disinhibiting the limbic system from moving forward ie outlandish ideas/dreams
REM sleep is super important
Sleep plays a role in cognition 
Slow wave and REM sleep also play roles in the formation of new memories
Sleep deprivation stimulates glucocorticoid secretion
75 percent of insomnia cases are triggered by a stressor
Poor sleepers tend to have higher levels of sympathetic arousal or of glucocorticoids in their blood stream

Chapter 12 - Aging and Death
I am thinking a lot about aging with myself and my mother. My clients are also dealing with aging and these are some important tips for longevity.
P.243 Aging can be defined as the progressive loss of the ability to deal with stress
P.245 There is evidence that an excess of stress can increase the risk of some of the diseases of aging
Programmed Die Offs (Salmon and Marsupial Mice) 
Max Rubne: there is only so long a body can go on - only so many breaths, so many heartbeats, so much metabolism that each poun of flesh can carry out before the mechanisms of life wear out

Chapter 13 - Why is Psychological Stress Stressful

This is very important to mention when working with clients.
The body can not only sense something stressful but it also is amazingly accurate at measuring just how far and how fast that stressor is throwing the body out of allostatic balance
The physiological stress response can be modulated by psychological factors. Two identical stressors with the same extent of allostatic disruption can be perceived and appraised differently, and the whole show changes from there
The stress response can be made bigger or smaller depending on psychological factors
When given an outlet for frustration a rat is far less likely to get an ulcer
Outlets can be (drinking water, sprinting, or running on a wheel)
A central feature of an outlet is that it distracts from a stressor and is positive
Social support reduces the stress response
People with spouses or close friends have longer life expectancies
If you are a member of an ethnic minority, the few members there are of your group in your neighborhood, the higher your risks of mental illness, psychiatric hospitalization and suicide.
Predictability makes stress less stressful
Loss of predictability triggers the stress response
Joan Silk of UCLA has emphasized that among primates a great strategy for maintaining dominance is for the alpha individual to mete out aggression in a randomly brutal way. This is our primate essence of terrorism.
Overabundance of predictability can lead to boredom 
Stress responses can be modulated or even caused by psychological factors, including loss of outlets for frustration and of social support, a perception of things worsening, and under some circumstances, a loss of control and of predictability.

Chapter 14 - Stress and Depression
I have suffered from periods of depression so it is a subject I am very interested in. I took life-force yoga training to help with learn more techniques for dealing with depressions.

-The defining feature of major depression is loss of pleasure
Anhedonia = inability to feel pleasure
Depression represents a state where those two independent axes tend toward collapsing into one inverse relationship -- too few positive emotions and too many negative ones
Accompanying major depression are great grief and great guilt. We often feel grief and guilt in the everyday sadness that we refer to as “depression.”
Some cognitive therapists consider depression to be primarily a disorder of thought rather than emotion
Psycho-motor retardation is another frequent feature of depression. The person speaks and moves slowly. Everything requires tremendous effort and concentration.
Architecture of sleep changes with depression
Elevated glucocorticoids is experienced by depressives
There are many different types of depression
Amgydala is involved with fear and anxiety
There is some evidence that depression involves abnormal levels of the neurotransmitters norepinephrine, serotonin and dopamine
The pleasure pathway seems to make heavy use of dopamine as a neurotransmitter
As mammals we have large limbic systems
Cortex does abstract cognition, invents philosophy, remembers where your car keys are
Simplifying: Depression as an occurrence when your cortex thinks an abstract negative thought and manages to convince the rest of the brain that this is real as a physical stressor
You can think of depression as the cortex whispering sad thoughts to the rest of the brain
Activation of the right prefrontal cortex is negative emotions and the left with 
The more prior history of stress you have, especially early in life, the less of a stressor it takes to produce those neurochemical changes. But the same stress signal, namely glucocorticoids, alters norepinephrine synthesis serotonin,
. .. 
Chapter 15 - Personality, Temperament and Their Stress-Related Consequences

I have a client who is dealing with anxiety these definitions are useful.
- We are ecologically buffered and privileges enough to be stressed mainly over social and psychological matters
- Baboon problems stem from inability to keep competition in perspective and social isolation
- Anxiety: a sense of disquiet, of disease, of the sands constantly shifting, menancing beneath your feet
- Unlike depressives, the anxiety prone person is still attempting to mobilize coping responses
- Anxiety and fear conditioning are the province of the amygdala
- The amygdala is also about aggression

Chapter 16 - Junkies, Adrenaline Junkies and Pleasure

I have a few clients who are in recovery.
- Brain contains a pleasure pathway that makes heavy use of the neurotransmitter dopamine
- Element of surprise produces even a greater amount of dopamine
- Dopamine plays an important role in the anticipation of pleasure and energizing you to respond to incentives
- Wanting vs Needing
- Context Dependent Relapse (many of them come from cortical and hippocampal regions that carry information about setting)
- Anxiolytic - a drug that lyses or disintegrates anciety
- Stress increases the likelihood of self-administering a drug to an addictive extent

Chapter 17 - The View from the Bottom

As a yoga therapist I hope to work more in underserved communities.
- Stress can make you more likely to get diseases that make you sick
- Chronic Poverty means stress
- Longevity is inversely related to poverty
-The more income inequality the worse the health and mortality of the society
- Wilkinson: In societies with more income inequality both the poor and the wealthy are healthier than their counterparts
- Poverty, and the poor health of the poor, is about much more than simply not having enough money. It’s about the stressors caused in a society that tolerates leaving so many of its members so far behind.
- “When humans invented poverty, they came up with a way of subjugating the low-ranking like nothing ever seen before in the primate world.”

Chapter 18 - Managing Stress

This chapter was a great summation.
-Successful Aging: no smoking, minimal alcohol, lots of exercise, normal body weight, absence of depression, a warm stable marriage, a mature, resilient coping style, being respected and needed, right sort  of infancy
-Handled Rats more successful aging
- People handling their own meds and consumption goes down
- Increasing control 
- Giving and receiving social support
- Cognitive Flexibility to switch strategies
- Few of the things that we find stressful are real in the sense that zebra or lion would understand. Because we have privileged lives we have invented stressors which we permit to dominate our lives. Surely we have the potential to be uniquely wise enough to banish their stressful hold.


Monday, November 7, 2016

How were you affected by the book "Why Zebras Don't Get Ulcers"

Reading the book we zebras don't get ulcers was a very upsetting experience for me.  I work in a very high stress high pressure environment in TV and the more I read the book the deeper trouble I felt I was in life wise.



One huge problem I have when I am stressed and I am stressed most of the time is over-eating.  I am always hungry and I never fear full.  Chapter 5 gave me a lot of insight into this.

"You're a zebra running for your life, don't think about lunch.  That's the reason we lose our appetites when we are stressed. Except for those of us who, when stressed, eat everything in sight, in a mindless mechanical way."

I realize I am what is called "hyperphagic" (eating more).  I always wished I was one of those people who lost their appetite when stressed but it is just not me and I always wondered whu.

"..of there are large amounts of CRH and gulcocorticoids in the bloodstream, you are probably in the middle of a sustained stressor. Also a good time to have appetite suppressed. You can pull this off only if the appetite-suppressing effects of CRH are stronger than the appetite-stimulating effects of glucocorticoids." p.73

"What else separates the stress hyperphagics from the stress hypophagics? Some of it has to do with your attitude toward eating, Lots of people eat not just out of nutritional need, but out of emotional need as well.  These folks tend to be overweight and to be stress-eaters....At evene given point, about two-thirds of us are :restrained" eaters. These people who are actively trying to diet, who would agree with statements like, "In a typical meal, I'm conscious of trying to restrict the amount of food that I consume." ... Restrained eaters are actively restricting their food intake. What the studies consistently show is that during stress, people who are normally restrained eaters are more likely than others to become hyperphagic."

This restrained eater hyperphagic propensity thing sounds like me.

I really got worried about all the talk about chronic stress and disease risk.  My stress is just too long and too frequent.  Also there is an incredible lack of predictability in my work life. I don't ever know when the producers and directors are going to like that sets and when they aren't and I am going to have to make last minute changes. This lack of predictability is the source of much of my anxiety. Also I am a free-lance and have gone from job to job for 22 years. Jobs last from 1 week to 10 months.

I also don't have much control of my life working in TV. My work schedule is changing all the time. I don't know what people want from me most of the time because they have a hard time explaining.  Also where I go every day to work changes.  I don't chose any of these things.  They are all sent to me late at night in the form of a call sheet.

On the positive side, I was encouraged by the idea of outlets for frustration helping the rats to be less likely to get an ulcer. Yoga and Art are my outlets for frustration.  But sometimes I have to work so many hours I let them go and that's when I get in trouble emotionally.

I also have a lot of social support in the form of my husband Tim and my cousin Lucretia. Their love and encouragement have helped me deal with my difficult career,

As to the "perception of things worsening" that's something I am very guilty of. I hear myself and others say all the time "the business (TV and Film) keeps getting worse."

These are the reasons I want to get out of TV and be a yoga therapist. I hope I can pull it off. I need a change for my mental health.

Why is psychological stress stressful?

Physiological Stress


Sapolsky talks about in great detail in the book "Why Zebras Don't Get Ulcers" that "when we sit around and worry about stressful things, we turn on the same physiological responses (as a zebra would if it were being attacked by a lion)-but they ate potentially a disaster when provoked chronically. A large body of evidence suggests that stress-related disease emerges, predominantly, out of the fact that we so often activate a physiological system that has evolved for responding to acute physical emergencies but we turn it on for months on end, worrying about mortgages, relationships and promotions."p.6



"But when we get into a physiological uproar and activate the stress response for no reason at all, or overs something we cannot do anything about, we call it things like "anxiety", "neurosis", "paranoia," and "needless hostility." p,7



"..,the stress-response can be mobilized not only in response to physical or psychological insults, but also in expectation of them...a physiological system activated not only be all sorts of physical disasters but by just thinking about them as well."


So this is what according to the book gets us into so much trouble leading to strokes, ulcers, dwarfish, reproduction issues, immunity issues, insomnia, depression, addiction, etc.  Our body reacts in a physiological way to psychological situations and activates the stress response over and over again. And basically we aren't designed for this, Our stress response was designed to handle short term physical stressors.


There is some good news: Firstly the body is incredibly smart.

"The body not only can sense something stressful, but it also is amazingly accurate at measuring just how far and how fast that stressor is throwing the body out of allostatic balance." p.253


And there are some positive extenuating circumstances.

"An organism is subjected to a painful stimulus, and you are interested in how great a stress-reponse will be triggered. The bioengineers (have mapped) the relationship between the intensity and duration of the stimulus and the response. . . when the painful stimulus can reach out for its mommy and cry in her arms. Under these circumstances, this organism shows less of s stress-response." p.254

"the physiogical stress response can be modulated by psychological factors. Two identical stressros with the same extent of allostatic disruption can be perceived, can be appraised differently, and the whole show canges from there. Suddenly the stress-response could be bigger or smaller depending on spychologcal factors.  In other words, psychological variables could modulate the stress-response."



Journaling Questions - Why Zebras Don't Get Ulcers

Why do you think Sapolsky chose the title: Why Zebras Don’t Get Ulcers?



I believe Sapolsky chose the title "Why Zebras Don't Get Ulcers" because he is looking at throughout the book how some reactions in our bodies to stress are things that are left over from our evolution. They make complete sense for a mammal like a zebra but for us a humans they don't function as well anymore. Are stresses as humans are chronic and mental without an immediate physical threat l while the stresses of most animals are short term acute physical crises,


"For animals like zebras the most upsetting things in life are acute physical crises. You are that zebra, a lion has just leapt out and ripped your stomach open, you've managed to get away, and now you have to spend the next hour evading the lion as it continues to stalk you. Or, perhaps just as stressfully, you are the lion, half-starved, and you had better be able to sprint across the savanna at top speed and grab something to eat or you won't survive. These are extremely stressful events, and they demand immediate physiological adaptations if you are going to live. Your body's responses are brilliantly adapted for handling this sort of emergency." p. 4


"This is the critical point of this book: if you are that zebra running for your life, or that lion sprinting for your meal, your bodies physiological response mechanisms are superbly adapted for dealing ith short-term physical emergencies. For the vast majority of beasts on this planet, stress is about a short-term crisis, after which it's either over with or you're over with. When we sit around an worry anout stressful things, we turn on the same physiological responses - but they are potentially a disaster when provoked chronically. A large body of evidence suggests that stress-related disease emerges predominantly, out of the fact that we so often activate a physiological system that has evolved from responding to acute physical emergencies but we turn it on for months on end, worrying about mortgages, relationships and promotions." p.6