I usually work out daily or every other day. Nothing too extreme (I have a weight set in my garage and don't go to the gym). What I've found is that when I wake up in the morning, I never feel motivated to get on the computer and put in internet marketing work. I just feel lazy and end up browsing social media sites or forums (such as this), but I never really take action. However, after I work out in the afternoon, even if it's just a short run to get the sweat going, I feel so much better. I come in, take a shower, and feel pumped and ready to take action! I think part of the reason for me is that I will feel guilty if I spend too much time on the computer without exercising. Not sure if there are any studies on this, but I wanted to see if anyone else felt this way.