Ok, this is not just something you may have heard at the dinner table as a child. Sitting properly is important, as sitting is already not very healthy as it is. Good posture while sitting is necessary to prevent all sorts of aches, pains, and muscle imbalances.
Here is an easy how-to guide on sitting at your desk from Mind Body Green. The one I have to constantly remind myself of is #1: butt to the back of the chair with lower back arched. I have neglected my lower back long enough and now I can really feel it. Sitting with my back arched is actually now an exercise for my lower back – it has become that weak! Don’t let that happen to you – sit up straight now.
More from Mind Body Green here.