I’m a personal trainer, and this is the only kettlebell workout you need to master the 7-7-7 method.

Kettlebells have skyrocketed in popularity among fitness enthusiasts seeking efficient, effective workouts. This uniquely shaped weight—resembling a cannonball with a handle—dates back to 18th century ...

The kettlebell is a small weight shaped like a ball attached to a built-in handle. It’s kind of like a dumbbell, except you only need one—and thanks to its handle, it’s incredibly easy to hold. Though ...