Nashville TN area Goal!

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Hi Everyone, I'm 45 and struggled with weight since I was 13. I've lost, gained lost again. Typical yo-yo! tired of it want this time to be the last life change! I am bigger than ever have been at 250 5' 11. My goal is 170!. I would like to find someone in the Nashville area who would like to set a weigh loss goal and goal of doing the Rock 'n' roll half Marathon on April 30.