Last time I tried to donate, my pulse was 48, and I was told that that was too low: the acceptable range is 50 to 100 beats per minute. Today, I had Tex take my pulse in the morning, and it was 48 again. The vampires frown on exertion before donation, but what they didn't know wouldn't hurt them. I ran the steps, glancing at the donation station at every descent to see if I could be taken right then, not to give my blood a chance to slow. After 54 steps four times and a few laps of the first floor, my pulse was 64 bpm and a vampire told me that I can sign something indicating that 48 bpm is a regular and healthy heartrate for me. That no one offered or knew that information last time is why I get to call them vampires instead of nurses.
I think I had given ten pints before 1997, when having had Lyme Disease became a deterrent until 2004 or so. Now I've given 12.