To some extent, this is actually reinforced by the medical establishment, which nowadays regards pain as the fifth vital sign. So when you go to a doctor appointment, one of the first things they do is at the start of the appointment, they check your temperature, your blood pressure, your heart rate, respiratory rate. And they ask you if you're feeling any pain, and they say on a scale of one to 10, what's your pain level. And it's subjective. How you're identifying with or relating to the pain influences, to what extent you see it as a one or a 10, or somewhere in between. And some people seem to have a very high threshold for pain, whereas others are very, very sensitive to it. And of course, our our experience with pain changes over time. As we age.