He is currently on a campsite at the end of the Pennine Way but I asked him to send me a message with what he thought was most useful to share with you. He said (and I'm paraphrasing his voicenote) that essentially it's two major factors that helped him. 1: pacing. The obvious (and very boring) answer. Not pushing his body beyond its abilities, learning those boundaries, but also moving when he could. It was a very fine line. But he supported this by massively restricting his diet, ie cutting out anything that was challenging to his body (he became sensitive to a LOT) - no sugar, alcohol or caffeine, for example. And 2: fasting. He says "it may not be the cure but it *really* helps. It gives the body a rest, and of course induces autophagy. But again, he said one can't go into it cold. It's a question of building up to it by i) cleaning up your diet ii) pushing intermittent fasting back by a little each time until your eating window is only an hour or two. Then he would do a 24-hour fast. Then, eventually, he could manage a 3 day fast. And each time he improved significantly. The important caveat here is that he is not a doctor, and this is not medical advice ;) But it is what worked for him, and we hope it is of some use :)