This column is being written in the middle of the night. At least, it feels like that, but the sun is shining outside. While most people are just starting work, it’s nearly my bedtime. Things seem so topsy-turvy because I’ve just spent a week working nights in A&E. It feels like I’m severely jet-lagged, but alas I’ve been holed up in a London hospital rather than relaxing in some tropical paradise. Although most people don’t have to endure the upheaval of night shifts, I do think many are suffering from very disrupted sleep patterns, resulting in a similar ‘lockdown jet-lag’.