"Myth: If you stop working out, muscle will turn into fat. Many people believe that if they stop working out, their muscle will turn into fat. Muscle and fat are two distinct tissues, however, and never can be converted from one to the other. If you stop exercising, muscle tissue will shrink, so you may feel flabbier. Also, when muscles get smaller, they do not need as many calories, so your metabolism slows. With a slower metabolism, if you eat the same amount of calories, you may gain body fat."
"Myth No. 2: muscle turns to fat when you don't exercise
For those who spend three or four days a week sweating through cardio and strength training, what happens to the muscle when you stop working out? Does it turn to fat?
Fitness guru Donna Richardson Joyner explained that this can't happen. "Muscle is muscle, fat is fat and you can't turn one into the other," she said.
It's a source of confusion for many, but there's no comparison deep inside the body. Dr Walter Thompson, a professor of exercise science at Georgia State University, said muscle is much denser then fat and is more compact.
He said that when you stop working out the muscle becomes a bit flabby and "non-functional", but does not turn into fat.
And if you're hoping for the opposite, sorry but exercise does not transform fat into muscle.
"You have to get rid of fat by doing cardio", said Lara Szymanski at The Sports Club in LA, "You have to build lean muscle and that's what you do by strength training."
Anyone have anything to say to the contrary?[/QUOTE]
This is my understanding as well......
SQ-