Langer Name Meaning. German, Dutch, Danish, and Jewish (Ashkenazic): nickname for a tall man, from an inflected form of Lang. According to Gottschald, in the Franconian dialect of German this was also a term for an unskilled laborer (more fully, Handlanger).
Muscle does not weigh more than fat, any more than lead weighs more than feathers. A pound is a pound is a pound. Where the misunderstanding often comes in is that muscle is much more dense than fat, so that, by volume, it seems to weigh more. That is, a pound of muscle occupies less space than a pound of fat. In addition, because a pound of muscle burns more fat than a pound of fat, even at rest, by increasing your lean muscle tissue mass, you're helping your body burn more calories. But back to your question.
Causes of Muscle Loss: There is a proportional relationship between declining levels of testosterone and muscle loss in men. Testosterone is vital to producing strong muscles, they go hand in hand. The hormone binds to receptors in your muscle cells, telling your muscles to contract and grow. When your body is experiencing a loss of testosterone it can cause male muscle loss because there is not enough of the hormone to bind to your muscle cells.