Jeff Bercovici is a journalist, sports fan and athlete, very much in that order. A former senior editor at Forbes, Jeff has also written for Playboy, GQ, Details, Glamour and The New York Times, and appeared as an expert commentator on NBC, CBS and CNN, amongst others. He is now Inc. magazine's San Francisco Bureau Chief, where he writes about the frontiers of human performance and the technology that enhances it. His interviews with figures including Sir Dave Brailsford, Red Bull's Andy Walshe and Peter Thiel give him a unique perspective on the secrets of fitness longevity.