The ZRT Laboratory Blog

The ZRT Blog is an extensive resource for patients and health care providers searching for health and hormone testing information. Here, you can read about ZRT’s cutting edge research, advances in testing, wellness advice, and health industry highlights.

How Stress Caused My Cancer

Posted by Dr. Robert Zembroski on Thursday, 12 January

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After beating cancer, Dr. Zembroski (above) strives to prevent chronic disease in his patients. Hear his story on January 23.

"You have a 5-inch tumor in your chest" were the words spoken from a friend and radiologist as we both stared bewildered at my chest X-ray, following a host of side effects I'd been having for weeks.

As I looked at the X-ray film in amazement, my thoughts quickly changed to frustration and anger as I realized my behaviors and actions played a pivotal role in creating my disease—non-Hodgkin's lymphoma. 

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Diurnal Fluctuations in Norepinephrine and Epinephrine Levels as Part of the Healthy Stress Response

Posted by Dr. Kate Placzek on Thursday, 08 December

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Stress has become a synonymous, integral even, accompaniment of life in our fast-paced world. Generally regarded as "distress," our bodies struggle to re-establish physiological integrity at certain times, such as after working long hours, or when we have insufficient exercise, sleep and nutrition. Driven by persistent exposure to stressors, the body begins to lose its dynamic resilience and fails to return the system to a normal baseline healthy state. Derailed and overwhelmed, our susceptibility to stress-related diseases is greatly increased [1].

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Herbs for Healthy Living

Posted by Dr. Sherry LaBeck on Monday, 26 September

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The adaptogens represent a category of herbs that is almost commonplace for those individuals seeking to be healthier in today’s stressful environment. These remarkable herbs focus on helping the body resist the complex biological reactions that arise from the stressful events we daily encounter.

Adaptogens work to increase the body’s resistance to physical, biological, emotional, and environmental stressors while promoting a return to normal physiologic function. Stress-related disorders have become one of the major health concerns so that practitioners need preventive concepts and new medicines. Used by healers for thousands of years, current practitioners are reviving adaptogen use to modulate individual responses to stress.

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The Cortisol Awakening Response in Addressing Adrenal Function

Posted by Dr. Allison Smith on Friday, 04 March

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Diurnal Rhythm Assessment

Thirty minutes after awakening from a good night's sleep, cortisol levels are at the highest they'll be all day. Following the morning peak, cortisol levels then fall to less than half that peak level by noon. They continue to drop to very low levels at night where they stay low during the sleep hours. Some individuals have a sharp rise to reach morning levels, others a more gradual incline. Looking at cortisol levels graphed during the day, any abnormal elevation, or depression of levels, or a loss of the expected curve with its characteristic morning peak and swooping decline towards evening may suggest HPA axis dysfunction – which is what we're most interested in assessing when we're looking at a 4-point salivary cortisol test.

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