I have an extremely slow resting pulse. It is not uncommon for it to be around 50. Last night it was around 45. I know that super athletes have a slow resting pulse, but I wouldn't class myself as one ...
I have a 7 km bicycle commute to and from work five days a week that I try to keep going all year round. This is the only exercise I get. If I pedal like crazy (but still abide by the traffic rules) ...