Source: Does thinking really hard burn more calories? - Barking up the wrong tree
Stashed in: Fitspo, Think!, @bakadesuyo, Calories!
Don't try to justify more snacking...
5K Obstacle Course Zombie Race - Run For Your Lives
They see me rowin', they hatin'
How Can You Tell if Your Life Is On Track? | TIME
5 things your clothes are saying about you: