Answer from Aaron Hoopes:

Hi,

As I'm sure you are aware, breathing through the nose is of the utmost importance when practicing breathing exercises. The nose has a number of defense mechanisms that prevent impurities and extremely cold air from entering the body. It is important to remember that in order to breathe in more air you first need to expel as much old air as possible from the lungs. Once the lungs are empty breathe in slowly and deeply through the nose and you will find you are able to get enough air. It does take some practice, but I think, with time, you will find that your breathing is improving.

Of course when training in the martial arts, breathing strictly through the nose is unrealistic. In fact it is physically impossible since the body's demand for oxygen increases too fast for the nose to handle the flow. However, while doing specific breathing exercises it is important. Think of it as a closed circuit within the body, breathing in through the nose and out through the nose. If you open your mouth, you break the circuit and your energy dissipates. Concentrate on relaxing when you breathe and it will be easier.

Warm Regards,

Aaron Hoopes