Pennsylvania woman rips fast 40 miles for her 40th birthday

This runner took her birthday miles to the next level

American man celebrates turning 80 by going for 80-mile run

This was the 40th consecutive year that Hoefgen used exercise to celebrate his birthday

Toronto man runs 42 marathons in 42 weeks for his 42nd birthday

Bernard Abarquez is using Project 42 to inspire others in his community