The 5-minute full-body plank workout that requires almost no movement... but you'll feel it working!
Natasha Kusen, The Australian Ballet, Serenade. Photograph Justin Smith.
20 things to start doing
So very true
Many an idiot could learn from this.
Don't believe everything you think!
Kettlebell Core Workout: my custom printable workout by @WorkoutLabs #workoutlabs #customworkout