Well I don't mean to go picking favorites or anything, but if I have to pick one group of joints to pay attention to for the the greatest benefit to the whole rest of the body (and the best one-stop-shopping spot for anti-aging benefits), I'm going to have to go with the toe hinge. Hands down. If you have a full range of healthy movement at the joints where the toes meet the feet (the metatarsal-phalangeal joints if you want to be fancy about it), this will instantly translate into a healthier and happier range of movement for everything upstream. Yep, your knees, hips, pelvis, and normal biomechanical movement of your spine all depend a great deal on how well this joint complex adapts in walking. But enough of my talking about this mystical part of your anatomy, check out the video and play along at home to get friendly with your toe hinge.
Photo by crowdive