Press a bell overhead, then fold down with eyes locked on it.
Rotate through your upper back and keep both heels planted, no rounding the low back.
With the bell locked overhead, hinging and rotating down toward the floor puts your obliques and deep trunk muscles in charge of controlling every degree of the descent and powering the return to tall. The core works in side bend and rotation at the same time, which almost nothing else in the gym trains under load. One side at a time, it earns its place as core strength plus overhead stability plus hip mobility folded into a single slow movement.
Strength, with mobility as a side effect. The trunk is actively controlling load through the entire fold and return, so treat it like a lift, low reps, full control, and no bouncing at the bottom.
Only go as far as you can with a locked overhead arm and a neutral spine, depth comes with practice. Widening your stance and turning the front foot out usually buys extra range immediately.
Very light, or none, until the pattern is grooved. The overhead arm must stay vertical and locked the whole rep, and that skill comes before load, most people start with a bell they can press for 10 or more.
