1. You can accomplish absolutely nothing else the rest of the day and still feel accomplished. Because you already ran, like, three miles. Isn't that enough?!
2. You might actually want (!) to eat healthy stuff afterward. You started the day on such a good foot that the salad bar at the cafeteria might start to seem appealing (especially if it's fresh mozzarella day).
3. You'll eventually get a better workout than you would later in the day. Technically, your body is wired to perform at its peak in mid-afternoon. But things like, oh, work can get in the way of workouts at that time. When you make exercise a regular part of your a.m. routine, though you'll be less likely to skip it for other obligations. (Your friend will pretty much never move her birthday party to 7 a.m.) And once you get used to moving first thing in the morning, studies suggest that the body adjusts and might even surpass its afternoon performance peak.
4. You'll feel less stressed when you get to work. And feel better about working late. People who exercise regularly report feeling more empowered and all around better about their work-life balance. science says!

