For aslong as I can remember I have had a perhaps nasty habit of holding my breath while concentrating on something that requires physical exertion. (yes wanking included)
The problem is while lifting, I perform much better If I hold my breath most of the time and only occassionally take deep breaths, as opposed to breathing deeply consistently and smoothly, like how everyone tells you to.
Infact If I try to breath fluently while lifting I find myself getting exhausted much faster, loosing concentration, jitteryness, and just general overall poorer performance.
What are peoples thoughts on this? Is this natural? Or just a really bad habit i need to kick.