This is how many calories you should burn 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.

أكثر... (http://www.msn.com/en-in/health/fitness/this-is-how-many-calories-you-should-burn-if-you-want-to-lose-a-pound/ar-BBDqUwu?li=AAgg4jn&srcref=rss)