I haven't shard here for a long time, so im going to post my findings,
some of you might be familiar with what im saying, and I will try my best to explain...
I often get a tension in my stomach the make is harder for me to breath, the explanation as to what this is is not important, so how can we remove this feeling quickly.... This is a very simple, and it might take some practice ? for me I notice the feeling in my stomach and simple move it to me chest, as soon as the feeling is in my chest it dissipates into nothing.
here is a good video that might be of help to explain what is happing and why https://www.youtube.com/watch?v=R-KI1D5NPJs
there is also a pdf that I found on goggle of his book called The_Chimp_Paradox_Peters_Dr_Steve.pdf