eaten-away: More jumpin jacks fo me I keep seeing this, and the math makes no sense. If every two jumping jacks burn 1 calorie, than 1000 jumping jacks would burn 500 calories. Not 3500. Not a pound of weight. However, jumping jacks are still awesome. Easy to do and get your heart rate up quickly. I do 100-300 a day, spread throughout the day.
If you consume 500 calories than you need per day, you'll lose a pound per week. You can burn 500 calories through exercise and eat 500 more calories too - just make sure you're in an overall daily deficit of 500 calories!