re: #19 wrenchwench

You have converted fat tissue to muscle tissue. Muscle weighs more, but doesn’t take up as much room in your jeans.

Not quite. It’s like that old “what weighs more, a pound of iron or pound of feathers” trick question. Muscle cells and fat cells weigh the same, but muscle cells are much denser. The analogy I recall is, visualize a muscle cell as a pea, and a fat cell as a cotton ball.