Stretching tight pectoral (chest) muscles can also help: Stand approximately one foot from a wall (facing it). Lift your right elbow to your side, palm facing forward, hand above your elbow (90 degree bend in your elbow). Turn slowly to your left, letting your right elbow and forearm to come into contact with wall. Continue turning to the left until you feel a slight stretch in right pectoral muscles. Hold for 30 seconds, then repeat with the left arm.
Remember...eating like a caveman is OK, but there's no need to hunch like one.