On Win Wenger site there are only a few informations about it and maybe someone from you knows something more for ex how does excatly look a session with sip breathing (how much time one session should take and how many session per one day) to have a satisfactory effects (I think that too much of it is not a good idea). Other question: when I let go air from my full lungs can I breath normally or I should start instantly next sip breathing ? Last question: how much can you stand with one cykle, I about 90 seconds