Peter Attia

THE darkness spreads around us -- black as obsidian and even as a slate. Faint flickerings from the stars above and the lights of the Southern California coast offer a meek challenge. But as the moon sets behind Santa Catalina Island, sea and sky unite, nearly obliterating the horizon. It seems a cruel prank to dump a man into the open ocean in this void -- outfitted only with a swimsuit, goggles and cap -- and then to watch as he struggles to swim back to the distant shore.

THE darkness spreads around us -- black as obsidian and even as a slate. Faint flickerings from the stars above and the lights of the Southern California coast offer a meek challenge. But as the moon sets behind Santa Catalina Island, sea and sky unite, nearly obliterating the horizon. It seems a cruel prank to dump a man into the open ocean in this void -- outfitted only with a swimsuit, goggles and cap -- and then to watch as he struggles to swim back to the distant shore.

Eat carbs. Don't eat carbs. Eat as little fat as possible. Cut out white food. Eat like the Greeks. No, eat like paleolithic humans. Eat less, move more. The advice can be dizzying; and what's more, the experts still don't know exactly what to recommend, says a writer who cofounded an initiative that plans to try to find some answers. “The government advice - eat less and exercise more - they don't know if that's right, says Gary Taubes, author of “Why We Get Fat” and “Good Calories, Bad Calories” and founder with Dr. Peter Attia of the Nutrition Science Initiative.