(Pictured above: The Time Warner Fit Nation team competed in the Emerald Nuts New Year’s Eve Midnight Run.)

On the heels of a very successful and healthy year, Time Warner employees and friends are heading into 2013 with the Emerald Nuts New Year’s Eve Midnight Run in Central Park. Dr. Sanjay Gupta will appear with Anderson Cooper and Kathy Griffin on CNN LIVE Monday night from the Central Park run.

Dr. Gupta led the Time Warner Fit Nation team through 2012, inspiring employees to work hard all year long to accomplish fitness goals. This year, about 5,000 employees collectively walked almost 1 billion steps during the eight-week walking challenge and 530 employees completed 5K runs in Atlanta, New York City and Burbank. Close to 300 people took the challenge a step further and competed in triathlons with the Fit Nation teams (including the 2012 Nautica Malibu Triathlon this past September, picture below), many of whom were first-time triathletes.

Time Warner Fit Nation is continuing in 2013, and anyone - not just employees - can be part of it, too. Visit CNN’s Fit Nation for details.

(Updated January 2, 2013: An estimated 5,000 people turned out for the Emerald Nuts New Year’s Eve Midnight Run. Watch Dr. Gupta discuss his experience post-run over at CNN.com.)