That's a different why. That a: Why are people eating so many calories? Why aren't people getting off the sofa and moving? The actual "mechanic" of weight ga

That's a different why. That a: Why are people eating so many calories? Why aren't people getting off the sofa and moving? The actual "mechanic" of weight gain are well known. That's not up for debate. But for some reason, it is. And the gains keep on coming.