I understand that a pound is a pound is a pound, but -- serious question -- is the phrasing "muscle is heavier than fat" misleading or inaccurate? It seems accurate to me -- muscle is more dense; it takes up more space per unit of weight, which is why when you are not losing weight but you are noticing your pants getting looser, it's probably muscle gain and fat loss combined. But if I'm phrasing it in a way that sounds ignorant, I'd like to know!