No, I wouldn't. I do work a 10 hr day but your question doesn't address days off. I work 6a to 4p 4 days a week with 3 days off. On one of the days off I will work a 8 hr or 6 hr overtime assigment for extra money. I still find time to hit the gym 5 days a week for an hour a day. No matter how tired I am or exhausted, once the workout begins, I feel better