18-40 year old Boulder residents and CU Students, Faculty, Staff, and Alumni Planning to live in the Boulder/Denver Area for next 3 months Compensation: $ 100 for 4 meetings plus 12 weeks of exercise program. If all sessions are completed, names will be entered in a raffle for chance to win an additional $100. ELIGIBILITY: 18-40 years old, NOT regular exercisers. No removable metal in body. CONTACT: (303)-492-9147 or cuchange@colorado.edu (Please leave your name and a number to reach you at)