Spy on your changing metabolism

Did you know that as you gain muscle and lose fat from exercising, your metabolism changes?  This is because muscle cells use more energy (i.e., burn more calories) than fat cells.

How will you know how many calories you need as your metabolism changes?  By spying on your changing metabolism with an Exerspy.  The Exerspy determines how many calories YOU burn individually for each activity, which is much better than using a static table of averages for average people.

I love my Exerspy!  A friend of mine lost 6 lbs in 3 weeks and said it was "by far the best result I've ever gotten."

http://www.dotfit.com/equipment-cid-1007.html