It is the most essential thing we do - yet many of us arguably breathe badly. The author of Breath explains how that can be changed

In the last stages of writing his book, Breath, James Nestor was stressed. “Which was ironic when writing a book about breathing patterns and mellowing out,” he says. The book was late; he’d spent his advance and was haemorrhaging even more money on extra research that was taking him off in new, potentially interesting, directions – was it really necessary, he wondered, to go to Paris to look at old skulls buried in catacombs beneath the city? (It was.)

Then a couple of months before the book’s May 2020 publication date, the Covid pandemic hit, and Nestor was advised to wait it out. He couldn’t afford to. “One of the main motivations for releasing it at that time was to get that [on-publication] advance,” he says. “But I’ll be honest, I didn’t want to release it. I said: ‘How are you going to promote a book that can’t be sold in stores, that I can’t tour for?’” He expected, he says, “absolutely zero to happen”.