I added a Jefferson curl exercise to my morning routine to boost flexibility and build strength — here's my results

Fitness woman doing cardio interval training outdoors. Caucasian female in sportswear exercising outdoors in morning, jumping against concrete wall.

There’s an exercise I recently took up every morning for one week — the Jefferson curl. If you want to increase spine mobility, stretch your back and boost hamstring flexibility, here’s an exercise for you. 

I chose to use a light dumbbell to assist with the otherwise bodyweight exercise, but you could use one of the best kettlebells, adjustable dumbbells, or barbells. Adding weight makes the move more intense, but I recommend prioritizing finding a deficit by standing on a bench or similar. If you can do both — perfect.