Is there such a thing? Few of my friends are worried that im doing to much to prepare for raleigh and im going to wear myself out. Im basically sticking to the Navy program but im running every day bar rest days where i do nothing. Normally on the run days i go for a four or six mile run. Strength days i do whats required in the book plus a mile and half run plus some weights at the gym. Finally on swim days ill do the swim plus either a four mile run or a mile and half and a session on the rowing machine. Am I over-doing it? Body feels fine, got a little twinge(not a pain) in my knee but other than that i feel fit and well.