Adarq.org

some people say breathe exclusively through your nose:

http://www.breathingretrainingcenter.com/blog/elite-athletes-you-don%E2%80%99t-get-more-energy-breathing-through-your-mouth-during-heavy-exertion

<a href="http://www.youtube.com/watch?v=SYZq52A5-Qk" target="_blank">http://www.youtube.com/watch?v=SYZq52A5-Qk</a>

the point about being more calm while nose breathing is definitely true from my experience.. not sure if that's mostly due to the fact that people perhaps can't maintain as high an intensity as mouth breathing.. however from experience, i do hate the feeling of high intensity mouth breathing, definitely feels more like a fight or flight response, hyperventilation.

going to keep experiment with nose breathing.. but, mostly breathing in through the nose, out through the mouth.

pc