I don’t lead by force, I lead by example. And if I can, set a good example. If I can set an example to my staff and my group, by being punctual, I come to work every morning, walk onto the hospital floor within two or three minutes of the same time every day, and they can depend upon it.

One thing that I did was race against the British men a lot and they used to push me round the road; they used to make my life really hard but then when I was racing against the best women in the world, I'd been through just about every experience you could imagine. I remember this one race – a half marathon – where my husband literally pushed me into every kerb he could find, he pushed me into every corner, you know, messed around and tried to drop me out the back of the pack. Then when you're in a race that really matters, if that happens, you've got the skills to deal with it… you need to have practised everything you possibly could in the lead up to it.

They’re very quiet coffee shops, and there are some positions in which it’s easier to write. Somewhere there’s an outlet, and you can keep your back to people. I’ll write for about two hours and then get up and walk with my iPad to the next coffee shop, about 10 minutes away. When you walk, you get a little fresh air, and I’ve heard moving around is good for you while writing. When you write in an office or at home, you end up sleeping. You can’t sleep at a cafe since you can’t lie down. I think that’s good, and it’s become a habit. I wrote Parasite half in Seoul and half in Vancouver.

Do keep a thesaurus, but in the shed at the back of the garden or behind the fridge, somewhere that demands travel or effort. Chances are the words that come into your head will do fine, eg “horse”, “ran”, “said”.

Every year I get more of an understanding of what I need to be happy. If I haven’t slept enough, or if I haven’t exercised, I’m more likely to be in a bad mood. My silly brain will think it’s because I haven’t written a good joke that day, but actually I’m just tired or I need a poo.

Brummies have adopted the sense that we live in a shit-hole, but in terms of green space, culture and community, it’s unrivalled. It’s a calm and happy place; my heart rate drops when I get off the train from London. I say, kind of with tongue in cheek, but not that far in my cheek, that it’s the best city in the world.