My point is that it is very easy to misinterpret these questions and/or the scale 1-4. ‘Criticising yourself’ is to me an absolutely normal action, and this whole quantify-yourself-and-your-actions idea is basically about criticising and improving yourself.

Similarly for ‘worrying’ – does it mean ‘anxious’ or merely ‘concerned’? Taken to an extreme, I worry about my health when crossing the road. ‘Loss of interest in work or other activities’ also matches nearly everyone, given that people will lose interest in specific activities over time.

Certainly, such a questionnaire with a standardised interpretation and scale will be helpful, but you will need a professional to do such an assessment. To me, it looks as if it will over-diagnose people as unhappy/depressed.

Loss of sex drive is also something that can happen for a multitude of reasons – satisfaction found in work, for example, or other sources of stress.