Who knew that the best part of waking up can actually cause heart issues? Turns out that drinking a ton of caffeine can actually be a cause of atrial fibrillation, a very common heart arrhythmia. Yikes! Maybe it’s time for a little caffeine withdrawal.

Toddlers running triathlons? The New York Times recently reported a surge in popularity of kids triathlons for with children as young as 3 years old competing. The race distances vary based on age range (a sample race for a 12-year-old would be a 200-yard swim, a 6-mile bike and a 1.25-mile run) and the USA Triathlon organization has a youth division which details race length recommendations and training guidelines for each age level of athletes starting at 7 years old up to 15. Is this a step in the right direction to help combat childhood obesity, a chance to introduce children to sportsmanship and competition or yet another manifestation of overzealous Little League parents?

If you’re trying to climb the corporate ladder, then you might have to start by climbing that stair master first. It turns out that exercise may not only have health benefits, but it can make you a better leader and improve work performance.

If you’re Twitter fiends like us, you probably noticed this trending topic, #fatpeoplearesexier, a few days ago. Our first thought: Awesome, people are showing some love for bigger bodies—surprising, yet great news. Then, we noticed all the hate Tweets that followed it. I’m not sure which is more sad, the fact that hundreds of folks on Twitter are openly and blatantly bashing the plus-size community for days, the fact that people had the energy to do this for days, or the fact that I wasn’t completely shocked that this was happening—it’s appalling.

If an angioplasty is not on your list of things to do, then it’s time to lace up those shoes and get moving. There is new evidence that exercise may actually be better for us than undergoing a surgical procedure. In fact, as little as two and a half hours of walking can prevent one third of heart disease and stroke incidents in the U.S.

It’s always great to have a weight-loss buddy—someone to help you overcome the obstacles throughout your weight-loss journey. That’s what Miles is for Mimi. You might recognize Miles from Oxygen’s dance weight-loss show, Dance Your Ass Off. As a contestant this season, he transformed his body and mind and is healthier (and happier) than ever. After losing 90 pounds, Miles helped his sister Mimi lose at least 55 pounds to date. Together, they make an incredible team and we hope they will inspire you out there to find your rock, someone that influences you to make positive, health-affirming choices—it’s a small step that will take you a long way. Miles and Mimi can tell you…

Find out the eight best snacks for weight-loss, how to love your spinach and the seven foods you think are healthy, but aren't.

Tired or stressed at work and just need a little energy boost? Beth Shaw, founder of YogaFit, a yoga training system used in fitness centers nationwide, says you can do yoga poses right at your desk and feel rejuvenated in a matter of minutes. "In the midst of a stressful, deadline-driven day, simply breathing deeply and practicing helpful and soothing yoga postures will improve both your mood and your productivity," says Beth. Yoga not only calms the mind and gets you focused, it tones the body and increases flexibility.

We got the pleasure of joining Bethenny Frankel, celebrity chef and star of The Real Housewives of New York City, and tennis champ Andy Roddick at the BNP Paribas Taste of Tennis event last night in New York City. To celebrate the start of the U.S. Open next week, tennis stars and some of the country’s most talented chefs gathered for a night of fun and amazing food.

Finally! Exercise can do more for us than just tone and tighten. A new study featured in the August issue of the journal Appetite found that it can help you trump your food temptations as well. Burning calories and cravings simultaneously—sounds like my kind of workout.