THE FEED
BREW UP AN EXTRA SHOT OF STAMINA
You don’t need to train on a mountain top to build game-changing endurance. Push your limits by combining your cup of coffee with an L-carnitine supp
PUT THE KETTLE ON, fill your mug and settle in for some good news: researchers at Chonbuk National University have found a foolproof method for hacking your cardio endurance, one that will help you hit a PB without the need for newfangled breath trainers or a flight (eventually) to an Ethiopian training
