Pushing 40

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In a couple of months I will be turning 40! So far I have lose about 25 lbs, but want to lose at least another 25 to 30! Is anyone else in the same boat? Pushing 40 and want to be in better shape than when you were in your twenties or thirties. I can honestly say I am in better shape now than my 20's! Still I am no where close to where I want to be!