At times, when the disassociation was very bad, she couldn’t identify her own face when she looks into the mirror. When I was trapped in a fug of anxiety and depression in my early 20s, disassociation made it feel as though the people around me were actors in a bad reality show.

I did learn a lot about anxiety, and really appreciated the honesty and rawness with which she shared her personal experiences.I went back to work, alternately crying in the toilets (my husband worked for the same company; that was fun) and sitting mute at my desk, listening to bagpipe music on my headphones in a strange attempt to find some mettle whenever I saw him walk by. I took up working out for the first time a year ago to help deal with anxiety and depression and while I totally see and feel the changes and acknowledge the link between mental health, physical health and exercise - I'd have liked to know more about the journey and feelings behind this book more than the numbers.

It was met with critical acclaim, becoming a bestseller and resulting in a companion title, ‘Jog On Journal: A Practical Guide To Getting Up and Running,’ being published in 2019. The whole process is just so full of self-doubt, loathing and panic that you’re fucking it up, and so I think you always have to remember not to give up, delete it or throw it away. Some people might take my (small) achievements as proof that I simply grew out of my anxiety, or that I was never affected by it too much in the first place. One female character is offed when Grace manages to gain control of the sauna in her smart house in Monaco, another man is murdered at a posh sex party. Photograph: Thomas Butler/The Guardian Bella Mackie: ‘I felt worried I might never feel truly better.At worst, I’ve looked in the mirror at my own face and not recognised it to be me, and not just because I had terrible hair and bad skin that morning. It explored how discovering exercise helped with the debilitating anxiety she’s lived with for most of her life. I also feel that there were bits glossed out on - about food, about her strength training, all alluded to in a few sentences and then moved on.

I think if you're suffering from anxiety (and are considering to start running to help with your mental health) it might totally be worth checking this book out. I don’t think anything can cure anxiety, but running keeps mine in check and it’s a tool in a toolbox of a few things that I can employ. but to my relief, she simply focuses on the benefits of running; whether you're jogging for five minutes, or heading out for a four-hour slog. There’s no medication you can use or work out you can do that will ensure that you never feel bothered or unhappy again.For me there was too many cold facts and not enough personal connection between the reader and author. It’s kind of cathartic to be able to mock it in a book that probably not very many men will actually end up reading.