When Kristin Cavallari says she’s never looked or felt better, you pay attention. The secret behind her transformation? Nashville-based trainer Kevin Klug, who’s revolutionizing fitness with his elite ...

Get beach-ready fast with this 4-week express dumbbell-only program—perfect for last-minute vacations or just shaping up in a ...

You must answer all questions on this application form unless otherwise indicated ... Question 3 If you know your unique client identifier (UCI) number or client identification number (client ID), ...

Vogue Williams' personal trainer John Belton shares Vogue's exact ab and arm workouts, plus her exercise and nutrition tips.