G-Chair is originally designed for the optimal positioning person at the computer. In some ways, it reminds a position of a pilot of a supersonic plane or an astronaut i.e. reclining pose. In this position the body weight is evenly  distributed  on the elements of the seat, the blood flow improves, the load on the internal organs decreases. All this allows you to spend at the computer for a long time, without slouching and not straining the muscles.