I did a little over 4hrs today and had 2 flats and 2 nosebleeds. This time of year it's cold and dry and it does a number on my sinuses, and since the leaves haven't been covered up by snow I'm also sort of dealing with weird allergy issues too.
I'm going to pretend the nosebleeds are due to my veins being overstuffed with ALL OF THE HEMOGLOBIN because base.