If you consume 500 calories less than you normally do a day, how long will it take you to lose 1 pound?

It would take a week or seven days because one pound is about 3,500 calories and 500x7 is 3,500. Hope that helps :)

If it's a smaller child or infant, place one on the middle of the chest and on the child's back. (if it is a bigger child with enough room for two, place one on the upper right/your left of the chest, and one on the lower left/your right) the pads should never touch each other.