If you are serious about boxing and if you want to become the best you can be, you will far exceed all of the fighters in the world who are training 7 days a week by only engaging in 5 or 6 days of active, intense training and resting on the 7th day. Look at some of the most influential boxers and their regimens, such as Manny Pacquio. When he changed his schedule to start incorporating resting, he saw major improvements in his skills. To make more progress in the long-haul, rest days are key. It isn’t easy to rationalize recovery, but it’s worth it in the long run.