Jenn Zerling, MS, CPT (JZ) has been an athlete her whole life and a fitness expert for over 10 years. She holds a masters degree in kinesiology and multiple national certifications. She currently works for Cenegenics Medical Institute in Beverly Hills where she is the fitness and nutrition director. She also personal trains, teaches boot camp, yoga, Spinning® classes and coaches people through lifestyle tranformations. JZ has managed fitness teams for health clubs including New York Sports Clubs and The Sports Club/LA. Jenn has also worked in medical weight loss for Lindora Medical for several years. She has presented at fitness conferences and for the Age Management Medical Group (AMMG) Conference in front of both fitness experts and physicians. She has also done work for publications including SHAPE magazine, Muscle and Fitness Magazine and the LA Times. She is the author of Breaking the Chains of Obesity, 107 tools which teaches people how to lose their weight and keep it off. For more information, visit www.jzfitness.com.