Usually, people have to take a break from their day and go off to a quiet place in order to reap the true benefits of yoga. The GayoLab Office Chair for Yoga, however, will allow you to do yoga wherever you please.
This chair encourages the regular changing of positions while seated. I tried this Gayolab chair myself and found it quite comfortable and maneuverable. With many who spend so much time in chairs, it makes sense that these seats help people recharge as opposed to ruining and straining their physical and mental postures.