Sounds weird but let me explain. I suffer with panic disorder and anxiety and breathe quickly. I have recently started to meditate to try and learn how to breathe properly, i.e, from my stomach and not my chest. It took some doing to actually breathe in the correct way and finally I can do it and I feel a lot better and calmer for it.
Just wanted to let u know how breathing properly can make u feel so much calmer and is good for your posture. Also, my asthma has improved.
Meditation is fab, I highly recommend it to reduce stress levels and more importantly to breathe properly.