Sprint 8 elliptical machine workout.

Gary Taubes, a nationally known science writer, gives a lecture about obesity. The event was held at New Brighton School and was sponsored by the Santa Cruz County Office of Education.

Peter Attia is a relentless self-experimenter, obsessed with the idea of a "quantified self." In the presentation he will share two components of his physical transformation as he evolved from "fit but fat and metabolically deranged" to "fit, lean, and metabolically dialed in."

Dr. Dominic D'Agostino is involved in amazing research developing and testing nutritional and metabolic therapies for neurological disorders and cancer. His research is at the cutting edge of the new scientific undercurrent using nutrition as a healing modality.

Dr Mary Vernon, MD, is one of the world's foremost experts on treating obesity and diabetes with low carbohydrate nutrition. She is a practicing family physician, educates doctors on low carb and is active in and former president of the American Society of Bariatric Physicians (doctors specializing in treating obese patients).

Millions have watched Dr. Robert Lustig's YouTube videos on the role sugar plays in obesity. In this compilation of the popular YouTube series "The Skinny on Obesity," Dr. Lustig and his UCSF colleagues dig deeper into the root causes of the obesity epidemic.

Duke University's Dr. Eric Westman answers viewer questions about the Atkins diet during a live "Office Hours" webcast interview, January 19, 2012. Westman is the director of the Duke Lifestyle Medicine program and co-author of "The New Atkins for a New You." Moderating is James Todd from Duke's Office of News and Communications.

Associate professor of medicine, the director of the Duke Lifestyle Medicine Clinic, and medical director of the Duke Center for Smoking Cessation. Dr. Westman is also board certified in internal medicine and obesity medicine, and has a masters degree in clinical research.