Finishing off my service provider stress-off I had the opportunity to take a reading while getting shots at the Doctor. I used the Polar H7, SweetBeat Life and Kubios to pull the data together. I was quite surprised to see that getting a needle stuck in me was not nearly as stressful at having the tooth drilled, and other then the moment of anticipation prior to the jab I was quite relaxed.
You can see at time had 2 I was anticipating the jab and the jab itself happened between 3 and 4. Afterward I was quite pleased when it was over. So looking across service providers my stress leader board looks like this:
When relaxed my average pNN50 was just a bit higher than getting a needle at the doctor. Doctors win gold, hairdressers win silver and dentists get a distant bronze. I use average pNN50 read at 30 second intervals to compare because the length of time I was in an anticipatory state and the time of treatment was different for each provider.
I can only speculate why the stress levels were not what I was expecting. I would have guessed a doctor’s jab would be nearer the dentists drill. Two factors may have influenced the readings, both related to mental state. First, the length of time was different for each. The doctor’s needle was very fast. The haircut had not pain, but it was 45 minutes long. And I was in the dentists chair for an hour during which 20 minutes was drilling. So mentally I was working on different time horizons.
Second, the certainty of outcome and context was different. In the doctors office my wife was with me, we were joking around and discussing our upcoming trip to Vietnam. We know the doctor and the atmosphere was quite convivial. The jab was going to be quick and done. So my relaxed state was consistent with those environmental factors. The haircut was with a long time and trusted provider and sadly I had to tell him at the end I was moving from London to San Francisco and would no longer be seeing him. So the readings tail off at the end where I said goodbye. Finally, the dentist was putting in a filling “to see how it goes” with the possibility that if they drilled and found the tooth in too bad a shape more detailed, longer and painful work was going to have necessary. So the anticipation in that chair was very high stakes.
Despite my calling this a description of the effect of the doctor and dentist, what we are actually seeing is the physiological output of my expectations. Where this journey has taken us is where it began. My interpretation of the situation fires my physiological stress. With the doctor, dentist and hairdresser I was sitting and they were using a sharp object to bring on some physical improvement. In each case my own interpretation of what was happening and what was about to happen triggered my reaction, so we continue to show that all stress has a powerful subjective element.