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It turns out that our perspective has a surprising amount of influence over the body’s stress response. When we turn a threat into a challenge, our body responds very differently. Psychologist Elissa Epel is one of the leading researchers on stress, and she explained to me how stress is supposed to work. Our stress response evolved to save us from attack or danger, like a hungry lion or a falling avalanche. Cortisol and adrenalin course into our blood. This causes our pupils to dilate so we can see more clearly, our heart and breathing to speed up so we can respond faster, and the blood to divert from our organs to our large muscles so we can fight or flee. This stress response evolved as a rare and temporary experience, but for many in our modern world, it is constantly activated. Epel and her colleague, Nobel Prize–winning molecular biologist Elizabeth Blackburn, have found that constant stress actually wears down our telomeres, the caps on our DNA that protect our cells from illness and aging. It is not just stress but our thought patterns in general that impact our telomeres, which has led Epel and Blackburn to conclude that our cells are actually “listening to our thoughts.” The problem is not the existence of stressors, which cannot be avoided; stress is simply the brain’s way of signaling that something is important. The problem—or perhaps the opportunity—is how we respond to this stress. Epel and Blackburn explain that it is not the stress alone that damages our telomeres. It is our response to the stress that is most important. They encourage us to develop stress resilience. This involves turning what is called “threat stress,” or the perception that a stressful event is a threat that will harm us, into what is called “challenge stress,” or the perception that a stressful event is a challenge that will help us grow. The remedy they offer is quite straightforward. One simply notices the fight-or-flight stress response in one’s body—the beating heart, the pulsing blood or tingling feeling in our hands and face, the rapid breathing—then remembers that these are natural responses to stress and that our body is just preparing to rise to the challenge. •
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