This infographic illustrates the relationship of posture to various health problems. The various problems it describes as often being affected by poor posture include back pain, foot pain, circulation issues, shoulder pain and even chronic fatigue.
Advice on improving posture is presented including posture during sitting, standing, walking, running, and sleeping.
Thanks to Voltier Digital for putting this together, greatist.com for posting it, and Dr. Ben Fung for Tweeting about it.
The Ultimate Guide to Good Posture