Thứ Ba, 20 tháng 5, 2014

How to make stress your friend? Kelly McGonigal (P2)


You can see why this study freaked me out. Here I've been spending so much energy telling people stress is bad for your health. So this study got me wondering: Can changing how you think about stress make you healthier? And here the science says yes. When you change your mind about stress, you can change your body's response to stress. Now to explain how this works. I want you all pretend that you are participants in a study designed to stress you out. It's called the social stress test. You come into the laboratory, and you're told you have to give a five minutes impromptu speech on your personal weaknesses to a panel of expert evaluators sitting right in front of you, and to make sure you feel pressure, they are bright lights and a camera in your face, kind of like this. And the evaluators have been trained to give you discouraging, non-verbal feedback, like this. 

Now that you're sufficiently demoralized, time for part two: a maths test. And unbeknownst to you, the experimenter has been trained to harass you during it. 

Now, we're going to all do this together. It's gonna be fun. For me. Okay. I want you all to count backwards from nine hundred and ninety six in increments of seven. You're going to do this out loud as fast as you can, starting with 996. Go! Go faster! Faster please! You're going too slow. Stop! Stop! Stop! That guy made a mistake. We are going to have to start all over again. You're not very good at this, are you? 

Okay, so you get the idea. Now, if you were actually in this study, you'd probably be a little stressed out. Your heart might be pounding, you might be breathing faster, may be breaking out into a sweat. And normally, we interpret these physical changes as anxiety or signs that we aren't coping very well with the pressure. But what if you viewed them instead as signs that your body was energized, was preparing you to meet this challenge? Now that is exactly what participants were told in a study conducted at Havard University. 

Before they went through the social stress test, they were taught to rethink their stress response as helpful. That pounding heart is preparing you for action. If you're breathing faster, it's no problem. It's getting more oxygen to your brain. And participants who learned to view the stress response as helpful for their performance, they were less stressed out, less anxious, more confident. But the most fascinating finding to me was how their physical stress response changed. Now, in typical stress response, your heart rate goes up, and your blood vessels constrict like this.       

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