Coach Miller would "suggest" that we jog around the track for a while, suddenly break into a sprint for about 40 yards, and then slow down to a walk as our lungs cried out “Please don’t do that again."

In the beginning we looked upon this activity as an extreme form of punishment but we later learned that these alternating intensity workouts dramatically improved our energy and performance.

Of the three key exercise variables…how often you exercise, how hard you work and how long you last, intensity has the most powerful effect.

Your body responds to short bursts of intensity by releasing a cascade of fat-mobilizing hormones and anti-aging growth hormones that supercharge your metabolism and burn extra calories for 24 hours or longer.

Here's a good example of the powerful effect of exercise intensity on heart health. A new study by British researchers tracked 1,975 healthy men over ten years.

The men who exercised the hardest had a 47% percent lower risk of death from all causes and a whopping 62% lower risk of death from heart disease, compared with those who reported very little or no intense exercise.

The best part however is that the benefits of this aerobic exercise program were achieved with as little as nine minutes per day of vigorous activity.

I'm Gene Millen. Fifteen years ago a heart surgeon, sawed open my chest and stitched in bypasses to six of my favorite heart arteries. It wasn't as much fun as you might think...and started me on a journey to helping others avoid my mistakes.

My experience in aerobic exercise programs includes working with hundreds of people in the Vital Life Center, a health and wellness club for the "over 50 crowd. I thought I knew all the right aerobic exercise programs, but after trying Dr. Sears' new PACE® program, it was soon apparent that there was more to learn.

This program is extremely effective and takes far less time than the "conventional" programs which coax you into spending hours in the gym to achieve your goals.

Dr. Sears new patented aerobic exercise program builds on the principle that long-duration exercise isn't natural.

Our ancient ancestors didn't run for mile after mile without rest or recovery. Their exercise was primarily hunting, or on some occasions being hunted. Their daily exercise "routine" consisted of short bursts of exertion, followed by periods of very welcome rest.

By using this system you recreate exactly what your body needs for optimum health.

The unique feature of PACE® -- progressively changing your routine over time -- ensures maximum fat loss with a "bulletproof" heart and "super-sized" lungpower.

By boosting your heart's "reserve capacity," Dr. Sears reveals that you can nearly eliminate your risk of heart attack.

One of Dr. Sears' insights into how the human heart functions is the fact that it doesn't need "endurance training." Your heart was designed to keep beating far into old age.

Heart attacks don't happen because your heart lacks endurance. They happen during times of stress, when your heart needs more energy and pumping capacity, but doesn't have it.

By building reserve capacity -- which the PACE® exercise weight loss program does quickly and easily -- you create a "reserve account" your heart can draw upon during times of emergency.

PACE® is the best fat burners I've ever seen. It works just as well for the novice exerciser (I've used it on people with congestive heart failure) as it does for the extremely fit.

According to Dr. Sears, the big mistake with aerobic exercise and jogging is that it causes our bodies to store fat. Once you pass the 15 to 20 minute mark, you start burning fat during exercise.

But this tells your body you need fat to burn as fuel during exercise. As a result, your body will make and store more fat to prepare for your next run or aerobic workout -- a never-ending cycle making it impossible to get rid of that stubborn fat that never seems to go away.

PACE® exercise weight loss routines are never more than 10 to 20 minutes.

That means your body burns carbs during exercise, not fat. After you finish the routine, your body starts burning fat to replace the carbs it just burned.

In fact, your body will burn fat for up to 24 hours after your PACE® routine. It even burns fat while you are sleeping! After a few weeks, your body gets the message that it doesn't need to store excess body fat at all.

The extra lungpower the PACE® exercise weight loss program gives you is more important than you may realize. Dr. Sears tells us that lung volume is your number one indicator for risk of death.

The bigger your lung volume, the longer you'll live. It's critical for preventing disease and boosting your immune system. Not to mention that big lungs transport fresh oxygen to every cell in your body.

The PACE® aerobic exercise program starts improving your heart health and supercharging your metabolism in a matter of days.

Dr. Sears has a very successful medical practice in Florida and a remarkable track record. He produces results for thousands of people from around the world.

Dr. Sears put everything you need to get started in his new science-backed book, PACE: Rediscover Your Native Fitness. And the best news? This book is so affordable, it makes no sense not to have it -- and use it to optimize your health and improve your vitality and energy.