Hastings Chiropractic
An Olympian's Health Letter
Stress and the Consequences to Our Health
April 2012
Why Zebras Don't Get Ulcers

There is a great book called "Why Zebras don't get Ulcers" by Robert Sapolsky, a professor of neurology at Stanford University. The premise is that when the lion comes all the zebra's experience an initial stress response to stimulate them to get out of harm's way. The minute the lion selects and kills its prey, the other zebra's in the herd shut off there stress response and commence to graze. This is a well calibrated stress response.


The problem with many of us is that the stress response turns on, and for whatever reason, doesn't turn off. This is when stress can have serious consequences to our health. Stress can be caused by many things - psychological stresses like the commute to work, relationship issues such as divorce or separation, or less obvious things like chronic inflammation, heavy metals, poor blood sugar control, or food sensitivities. The interesting thing is it's not the stress that kills us; its our bodies maladapted response to the stress.


Dr. Hans Selye, a noted endocrinologist, was one of the first to research the stress response. He wrote seven books and published 1,700 research papers on the subject. Selye found a relationship between resistance to stress and the amount of time exposed to stress. He came up with the term General Adaptation Syndrome or GAS. When you don't have enough GAS in the tank, you become sick and exhausted.


He described three phases of the stress response; alarm, resistance and exhaustion. Each has its own set of characteristics and recovery times. During the alarm phase, the adrenal glands produce more of the hormones cortisol and DHEA and your sympathetic nervous system (your "fight or flight" response) becomes dominant. This is the stressed and wired phase. If stress continues unabated you enter into the second phase of stress, the Resistance Phase. Cortisol now starts to slowly decrease and DHEA starts to decline as well. You may feel anxiety, begin to experience high blood pressure, digestive complaints such as IBS or ulcers and may experience sleep disturbances such as difficulty staying asleep or difficulty waking in the morning. Finally, there is the Exhaustion phase, where cortisol and DHEA levels become very low. You are now in a parasympathetic state because you have literally burned out your ability to produce the hormones needed for the sympathetic response. This phase is marked by chronic low blood pressure, exhaustion, and some may experience fibromyalgia or chronic fatigue.


Additional signs and symptoms of a poor stress response include decreased libido, accumulation of fat around the waist and inability to lose weight, depression and anxiety, osteopenia or osteoporosis, chronic inflammation, PMS, and immune deficiency. Some of the keys to recovery are recognizing and identifying your stress, relaxation and stress reduction techniques such as meditation, exercise, making time for friends and family, proper diet and blood sugar control, and getting enough sleep.


To assess your stress response your health practitioner may recommend a simple salivary test (an Adrenal Stress Index) which measures your cortisol and DHEA levels at four different times throughout the day. This assessment can identify which stage of stress you are experiencing and help determine a protocol that works for you and your lifestyle.


If you would like to complete an Adrenal Stress Index assessment, please give me a call at the office or email me and I would be happy to help you get started.  


Yours in Health,



Dr. Chris Hastings, D.C., I.C.A.K.
289 Main Street, Burton House
Norwich, VT 05055
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