This is how many calories you should burn if you want to lose a pound

[ahlam1399]

http://img-s-msn-com.akamaized.net/tenant/amp/entityid/BBDqo85.img?h=100&w=100&m=6&q=60&o=f&l=f&x=605&y=184The scientific rule of thumb is that you need to burn 3,500 calories to lose one pound, but doing that in one day sounds daunting and impossible. Do this instead.

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