When you enter the gym, which way should you head first? Toward the treadmills and spin studio to get your sweat on with a cardio session? Or toward the free weights and strength-training machines to ...

When you’re crunched for time and need to squeeze in a workout, it’s fair to want to get the most out of your effort. But while there’s been an ongoing debate about the merits of aerobic vs. anaerobic ...