What is good posture? How do I know if I'm standing correctly?

This is a short version of a daily posture check you can do. Use this video to get started so that you can then do the steps by yourself in 8 seconds. Ideally to do in the morning while waiting for the kettle to boil, standing in a queue, taking a screen break or even when you're on the phone. 

 Make this your 8 second daily mantra to reset your posture to neutral.