Ever since the early humans learned to walk upright, they have suffered, as an unfortunate consequence of their erect posture, from low back pain. Modern understanding on this matter dictates that low back pain, in particular, is caused due to a postural instability resulting from poor "proprioception, " which is a term for the perception of part of our body's own position in space. In fact, our trunk and lower legs are key to maintaining postural stability due to the presence of "proprioceptors" -- sensory receptors responding to position and movement -- in those areas. Interestingly, studies have suggested that a local vibratory stimulation can, in fact, improve proprioceptive function.