Have you ever wondered why it seems to be harder to lose weight
each time you gain it back? It is a question that many people ask
themselves, but why do so many people have this perception? "Because no
matter how you drop pounds -- whether it's through dieting, exercise, or
a combination of both -- you will inevitably lose some muscle, and that
slows down your basal metabolic rate," says Jackie Newgent, R.D., a New
York City based nutrition consultant. Strength training with weights
throughout your weight loss period can help preserve a lot but not
necessarily all of it. "Then, when you regain the weight, you'll most
likely put on more fat than muscle, which reduces your percentage of
lean body mass, leaving you with a slower metabolism than you had prior
to the weight loss."