valid, thee ect of that stress on the body is never advantageous or health enhancing. Your body believes that it is being chased by a lion, is standing perched on a perilous cliff, or is fighting off a pack of angry cannibals.
Here area few examples from scientific studies demonstrating thee ects of stress on the body.
Researchers at the Ohio State University College of Medicine confirmed that stressful emotions trigger hormonal and genetic responses, by measuring how stress affects the speed of healing minor skin wounds—a significant marker of gene activation.
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A group of 42 married couples were
given small suction blisters, and then their level of three proteins commonly expressed in wound healing was monitored fora total of three weeks. The couples were asked to have a neutral discussion for half an hour as a baseline and then, later, to talk about a previous marital argument.
The researchers found that after the couples discussed a previous disagreement, their level of healing-linked proteins was mildly suppressed (showing that the genes were downregulated). The suppression rose to an even greater degree—about 40 percent—in couples whose discussion ballooned into a significant conflict, peppered with sarcastic comments, criticism, and put-downs.
Research also supports the reverse effect—that reducing stress with positive emotions triggers epigenetic changes that improve health. Two key studies by researchers at the Benson-Henry Institute for Mind Body
Medicine at Massachusetts General Hospital in Boston looked
at thee ects of meditation, which is known for eliciting peaceful and even blissful states, on gene expression. In the first study, conducted in 2008,
20 volunteers received eight weeks of training in various mind-body practices (including several types of meditation, yoga, and repetitive prayer) known to induce the relaxation response, a physiological state of deep rest (discussed in Chapter The researchers also followed 19
long-term daily practitioners of the same techniques.
At the end of the study period, the novices showed a change in genes (874 upregulated for health and 687 downregulated for stress, as well as reduced blood pressure and reduced
heart and respiration rates,
while the experienced practitioners expressed 2,209 new genes. Most of the genetic changes involved improving the body’s response to chronic psychological stress.
The second study, conducted in 2013, found that eliciting the relaxation response produces changes in gene expression after just
one session of meditation among both novices and experienced practitioners alike (with
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the long-term practitioners, not surprisingly, deriving more benefit).
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Genes that were upregulated included those involved in immune function,
energy metabolism, and insulin secretion, while genes that were downregulated included those linked to inflammation and stress.
Studies like these underscore just how quickly it’s possible to change your own genes. That’s why the placebo response can produce physical changes in a matter of moments. In my workshops around the world, my colleagues and I have witnessed significant and immediate changes in our participants health after only one session of meditation. They transformed themselves and activated new genes in new ways by thought alone. (You’ll be introduced to some of them soon.)
When we’re living in survival mode, with our stress response turned on all the time, we can really focus on only three things our physical bodies
(
Am I okay?), the environment (
Where is it safe?), and time (
How long willShare with your friends: