every year a pilot has to present himself/herself for a first class medical
Over 40yo it's every 6 months. Over 50yo the ECG is also every 6 months.
The nurses once complained that my pulse was too slow and said the lady AME could be concerned that I'd briefly lose consciousness on the approach
They said they had to increase my pulse rate but, as a glimmer of a smile crossed my face, they quickly pointed out that they did not provide such services
Another time, apparently because, when having an ECG, I'm too relaxed, I had an inverted P-wave. As soon as I moved around it was OK but what a kerfuffle that caused. Stress ECG then, because that highlighted something else, off to hospital to have a radioactive tracer injected. Final report: nothing wrong.
Someone earlier mentioned Loss of Licence insurance. In my experience no LoL ins I've ever had would have gone far towards fully compensating for losing one's licence.