Everything was sore . David Wright finished his marathon of running 50 miles in 50 days last month . His last marathon was in 2009 , which he ran with his daughter . Wright says an experimental diet has helped him keep his cancer at bay .
David Wright finished his marathon of running 50 miles in 50 days last month . His last marathon was in 2009 , which he ran with his daughter . Wright says an experimental diet has helped him keep his cancer at bay .