Marcus Aurelius advised that we approach each task as if it were our last. Whatever you are doing, pretend it’s your last act, the final thing you’ll do before death - and try to take this mental exercise seriously.

Another good technique for maintaining focus is recognising and accepting that some things are simply beyond your control.

Remember: there’s only one thing you can control, your mind. What about your body? Well, it’s going to get sick or injured whether you like it or not. You can’t control that. You can, however, control your thoughts. So ignore everything that’s not your mind, everything that’s not in your control.

It’ll sharpen your focus and lift the burden of responsibility.

All you need to worry about is your mind, as well as the choices and actions that are the consequences of its reasoning.

In the morning, take a minute to remind yourself of what you can and cannot control – and only focus on the former.

At midday, remind yourself that the only ability you really possess is the capacity to make choices.

In the evening, consider how much is out of your control. You can sleep easy knowing that those matters can be left to fortune.