Like most people (who aren't active military or trained athletes), my posture has been questionable for many years, mostly due to common "slouching". I became more aware of my shoulders forward/head down issues when the gyms recently closed, and I took to 5-6 mile walks each day to try and stay in shape (which give you lots of time to think about things, including how bad your posture is.) And being about 5'8", I knew I wasn't maximizing my height (or appearance) by slouching. This corrector was very reasonably priced, with lots of positive reviews, so I thought why not. Glad I did. I wear it during my nearly 2 hour walks each day, and think that a combination of pulling my shoulders back (and therefore my head) AND reminding me to stand straight and tall has really helped. Not only do I complete my walks with MUCH better posture, my body/brain carry the lesson over into the time I'm not wearing it. Bottom line: Posture is both a physical and mental thing. This corrector helps with both, and I like the way I feel when I'm fully upright...which is also a much better look than being all hunched over. Not sure if it'll work miracles for those with significant posture/back problems/pain, but for run of the mill poor posture, it's well worth buying.