Celeb Trainer Gunnar Peterson Teaches Us 4 Simple Exercises

YH hits the gym with celebrity trainer Gunnar Peterson to work up a well-earned sweat! The fitness guru shares with us his core health philosophy before getting down to business, showing us four simple exercise routines that really pack a punch, including the Step-Up With High Knee, Rope Pull, Sled Push, and Ladder Climber. Whew, we'll be whipped into shape in no time! Hosted by Corinne Solomon (@corinnesolomon). Check out the Young Hollywood Store Here: http://shopyounghollywood.com/