The prologue to Daniella Moyles’s recently released book Jump, certainly packs a punch. She’s driving on the M50 with her boyfriend at the time and is being enveloped by a panic attack.

“I don’t remember doing it but I have stopped the car – my internal state has clearly spilled over into something undeniably physical, judging by the wide-eyed, ashen look on the suddenly unfamiliar face of the man beside me.