Not a good week or a bad week. Last week.

If you didn't come with anything, don't worry. Three things bring it back faster than trying to remember cold:

• Your camera roll. You took photos of food. Everyone does.
• Your calendar. Where were you, and who with?
• Your CGM history. Scroll back seven days. You'll recognise the shapes before you recognise the days.

Take a minute if you need it. This is the only bit of the lesson that's homework.