Think thin people have faster metabolisms and sweating means you're burning fat faster? Not so, say our experts.
Thin people have fast metabolisms.
MYTH! The less you weigh, the slower your metabolism, because it takes fewer calories to maintain your weight. If a speedy metabolism is what you covet, you'd be better off admiring Olympic skier Lindsey Vonn's quads of steel than Kate Middleton's slender physique. "The more muscle you have, the more calories you burn," Nieman says. This fact also explains why it's crucial for those looking to slim down to pair a diet plan with exercise. Strength training will keep your metabolism revved as the pounds drop.
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I've gained weight. I think it's my thyroid.
MYTH! Home in on your habits before you blame hormones. "The number of people who are overweight or obese because of a thyroid problem is minuscule," says Adrian Dobs, M.D., professor of medicine atRead More »from Why Skinny Doesn’t Always Mean Healthy