Just the other day, I was feeling pretty lousy. With a high temperature, feeling alternately hot and cold, it was an absolute shoo-in that I had an infection and a fever, but being a stoic, I tried to shake it off without visiting the doctor.

Unsuccessfully as it turned out, so I relented (eventually) and off I went to see the man who could fix me up.

I have a pretty good idea what is wrong and after I explain the symptoms, so does he, but here’s the thing. What is the first thing that he does? He takes my blood pressure.