Yeah, thanks, I'm interested in selectively in this aspect, what they are doing with the breath and why

well, until the pile of collecting relevant information.
As for the transformations, then I consider them in any approach, partial break,... we need feedback from the world - do not have to eat like a Hippo, but sometimes it is useful something to eat... to communicate, not to fatten their belly. Well, and social aspects.
T/e/ for a full transition to almost not eating (totally not eating think is a mistake) you need to have the motivation why this is needed in addition to energy health (for the last I don't really complain although there is much to improve for me and many others).
In fact, without special measures, if necessary, more when busy, days I can eat at the level of an Apple a day or something like that or to forget about it... I have friends in the same rhythm of living. When socializing themselves represent only partially specific eating

hihi....
Due to the fact that health and energy allow (at least yet) in such a rhythm to live, I see no incentive something more hard to change in this way - well, except that to reduce the wrongness, but it happens in addition to my desire.
However, I believe that I do not fully understand the "bonuses" of adjustment.
But I am convinced that the connection with the digestive tract flora on the territory of the reservation must be (t/e/ with at least something removed from their trees-shrubs-beds) that closes a cycle on a completely informational and not on the food level.