A recent commentary from the Journal of the American Dietetic Association outlines the concept of "energy gap" and how it relates to weight loss and weight maintenance. The term energy gap was coined to estimate the change in energy balance (intake and expenditure) behaviors required to achieve and sustain weight loss in individuals and populations.

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"Five...five dollar foot longs." You've probably had Subway's catchy little ditty stuck in your head--ALL DAY--at least once by now.

Granted, it's not as nagging as Chili's "I want my baby back, baby back, back," but its pretty hard to shake, which might be a good thing.

Turns out, $5 is the latest win-win in fast food gimmicks. Subway raked in $3.8 billion with it, and now other restaurants are giving it a try too.

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It seems personality tests are being used for everything these days.

From dating services to employment, people are using these tests to determine if their personality type is a good fit with their potential partner or job.

Now it appears these types of tests are being used to evaluate not only what motivates people to loose weight according to their personality type, but also what things could help determine one's success on a particular diet.

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The idea that French woman could live in the land of wine, cheese, and those mouth-watering pastries without gaining so much as an inch was such a phenomenon that it even spawned a best-selling book, French Women Don't Get Fat. And, yes, it may have created a little envy, too.

But as it turns out, French women do get fat, as do French men. According to Reuters, their obesity rates are very similar to those in the United States ... forty years ago.

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The last video game system I owned was a Nintendo 64. Needless to say things have come a long way since NHL '99 and James Bond's Golden Eye. Video gaming has hit an almost scary level of virtual reality and has tapped into just about every realm of life - including fitness.

Fitness video games are a fascinating paradox - the very thing that is contributing towards keeping children and adults alike sedentary is scratching for an opportunity to become part of the solution rather than part of the problem.

The latest incarnation of this phenomenon is Ubisoft's "Your Shape" - a concept that could change the face of fitness-based video gaming - and perhaps gaming in general. I had a chance to try this one out and here's a bit about it...

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