Actor Idris Elba may be the busiest man in showbiz, with seven movies in post-production or filming. And while he's always intense, his portrayal of a solider slowly unraveling in the 2010 movie "Legacy" was enough to make anyone's heart skip a beat.

Now the LEGACY Study from Australia reveals that if you have atrial fibrillation (or a-fib, an irregular heartbeat that can lead to stroke and is getting more common in people over age 65), a great way to stop the heart from stuttering is to lose weight and keep it off.

Researchers followed 355 obese people with a-fib for four years: 45 percent of participants who lost at least 10 percent of their body weight had no symptoms of a-fib — without even taking any medication.

About 5.2 million people in North America have a-fib. That number is expected to more than double, to around 12.1 million, by 2030, fueled by the fact that 70 percent of adults are overweight or obese.

Most people with a-fib will benefit enormously from shedding 10 percent of their body weight — and not regaining it.

It takes hard work to reduce your weight, but we hope knowing about such profound health benefits will inspire YOU to remake your future.