Include Intervals

Health.com: 7 Easy Ways to Kickstart Your Metabolism

Cyclists who pedaled at an all-out effort with high resistance for a total of five 30-second sprints (that's just 2.5 minutes!) burned a whopping 200 calories, according to recent Colorado State University research.

Don't forget to recover between intervals: Here participants recouped with four minutes of slow pedaling with low resistance after each burst.

"Changing the intensity forces your muscles to work harder," says Andia Winslow, a personal trainer in New York City.

(Corbis)

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Ramp It Up

Raise a hand if you have a fast metabolism. Anyone? Truth is, we all think our metabolic rate is slowww—and assume that speeding it up would require two-hour runs and boot camp till we're wrecked.

Not so. In fact, all the little decisions you make about eating and moving make a big difference in your calorie-torching ability.

"Your metabolism isn't fixed," says exercise physiologist Gary Ditsch. "You can impact it significantly with your daily activity and diet." Adopt a few of these strategies to get the metabolism you crave—in the time you have.

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Think: Strong

We all know weight-lifting builds muscle, and the more muscle you have, the more calories you burn. What you may not realize is that the calorie burn continues long after your last rep.

In a study at Southern Illinois University, exercisers who did a 15-minute resistance routine burned 100 extra calories a day for three days afterward.

"Strength training causes micro trauma to the muscles," says Wayne Westcott, PhD, director of fitness research at Quincy College in Massachusetts. "Your body has to rebuild the muscle."

It does that by torching additional protein and carbs. Boost your fat burning: Three days a week, do 1 to 3 sets each of five resistance exercises (think push-ups and squats).

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Lift First, Do C...

Exercisers who pumped iron 20 minutes before cycling melted more fat than those who didn't lift or those who waited longer between lifting and doing cardio.

So move right from the hand weights to that bike or treadmill.

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Spice Things Up

That beyond-hot mustard that comes with Asian takeout can rev your metabolism by 20 to 25 percent.

"It boosts production of fat-burning hormones," says Lori Shemek, PhD, author of "Fire-Up Your Fat Burn!" Try adding one teaspoon to your usual vinaigrette.

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The opinions expressed are solely those of the author and do not necessarily reflect the views of Comcast.

Include Interval...

The opinions expressed are solely those of the author and do not necessarily reflect the views of Comcast.

Guzzle H20

It will keep your metab humming when you're just bumming around. In a University of Utah study, participants who downed eight to 12 glasses of water a day burned more calories at rest than those who drank four.

Water not your cup of tea? Freeze bits of peeled citrus fruit and use them in place of ice cubes.

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Snack Post-Worko...

Exercisers who drank a 250-calorie shake with 24 grams of protein and 36 grams of carbs after strength training lost about four pounds more fat and created one and a half pounds more lean muscle in six months than those who didn't drink the shake, Westcott says.

His research links the protein-carb hit with muscle building and fat loss. But it doesn’t have to be a shake; a banana with peanut butter works too—just nosh within 30 minutes after working out (and include those calories in your overall tally).

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Do a Down Dog

Surprise: Yoga gets you in burn mode. In one study, participants who om'd their way through a 50-minute yoga session saw a drop in their levels of the stress hormone cortisol, which can inhibit fat burning.

Start with a 10-minute circuit and work up to a longer session.

(Corbis)