About lower heart rates... A month ago I gave blood and they always take my heart rate and blood pressure, that day my heart rate was 48! The nurse said that it was quite low and asked if I exercised a lot and I said that I ran. He then wrote something on the paper, when he left the room for a minute I peeked at what he wrote and it said: "Donor is athletic"

WOW, I was soooo proud of myself, I never considered that I was athletic!! A lower heart rate I guess is a very good thing...
I didn't run today but yesterday I did 5.75k and it was cold, it was -9C, and damp at first, but once I was warmed up it was a really good run.