THE BRONX - It's time to ring in a new year, and for many people that means out with poor eating habits and in with a new, healthier routine.

CrossFit is a fitness phenomenon that's been gaining popularity lately. It's been around for more than 14 years.

It involves high intensity functional movements that are constantly varied. It's a combination of weight lifting, calisthenics, running, jumping, rowing and other activities.

Steve Lynch, a CrossFit instructor, says the benefits last long after participants leave the gym. "You can certainly improve your quality of life," he says. "You're going to continue burning calories 24-36 hours after your workout is done."

There are several CrossFit gyms throughout the city.