Popsugar Fitness Relationships Reasons to Work Out With a Friend 13 Reasons to Sweat It Out With a Workout Buddy June 12, 2015 by Marina Liao View On One Page Photo 11 of 13 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 11 You Can Track Your Progress Together There's no need to invest in fitness trackers. Your BFF won't hold back on the positive comments. Previous Next Start Slideshow RelationshipsFunny Fitness