The first time I got an EKG, the nurse ran from the room and retrieved a doctor. After examining the EKG, he ensured I was not in cardiac arrest, then asked if I was an athlete. "I suppose so", I answered. He told the nurse I was fine, and left.

Now, when I get my annual physical, I warn the nurse in advance that my EKG will be unusual because I'm an athlete.

So, evidently I'm an athlete.