I understand now why the guides insist I stay on twitter and even argue aimlessly! My mind works very laterally and I've understood something about healing while arguing about something else with the debunking Sci guy.:)
Sap rising in a tree as Viktor Schauberger & Barthelomew explain it, where the greater the suction the more the sap rises taking the finest nutrition to the growing tip.
Die-back happens when it's unable to raise sap or clear waste in trees, 'our health too deteriorates from the point that we are unable to coordinate the suction flaps.
The suction we are able to apply in sequence is directly correlated to the state of our health!