A runner needs not just to be skinny but - more specifically - to have skinny calves and ankles, because every extra pound carried on your extremities costs more than a pound carried on your torso. That's why shaving even a few ounces off a pair of running shoes can have a significant effect.
Every pound of muscle burns approximately 50 calories every day, just doing nothing.
I train for at least two hours, three times a day - weights, bench-press, push-ups, running, sparring, boxing sessions - so I must be burning off a lot of calories. But I don't weigh myself too often - just once every day.
I actually read somewhere that they measured how many calories you burn from watching movies, and horror movies are way, way up the list.
You can burn a lot of calories mopping the house.
Find the balance between the calories you take in and the ones you burn up.
Upscale people are fixated with food simply because they are now able to eat so much of it without getting fat, and the reason they don't get fat is that they maintain a profligate level of calorie expenditure. The very same people whose evenings begin with melted goats cheese... get up at dawn to run, break for a mid-morning aerobics class, and watch the evening news while racing on a stationary bicycle.
I don't know how many calories an average chess player burns per game, but it often exceeds that of a player in ball games. It is not only the chess as such: You need to be fit and undergo complicated preparation.
There is a huge misconception that if you do something like hot yoga, you'll burn more calories, and the opposite is true. You want to heat your body from the inside out, not the outside in.
Anyone will tell you if you want to run a business, you need to monitor costs and revenues. In the same manner, if you want to run your body, you need to monitor intake and returns. It's in your best interest.