How Subjective Observations Are Recorded

What is recorded

Alongside the numbers, each day carries a written and filmed account of the things no device measures:

• Hunger, and how it changed through the day
• Energy, physical and mental
• Mood and irritability
• Concentration and clarity
• Sleep as experienced, separately from what the band reported
• Anything unusual: headaches, cold hands, dizziness, cravings, dreams
• What was eaten on eating days, in ordinary terms

When it is written

The same day, not reconstructed later. A note written three days afterwards is a memory of a feeling, which is a different and much weaker thing. Where a day's note was written late, it says so.

How it is published

Unedited in substance. Bad days, abandoned fasting days, poor decisions and reversals stay in. A log that only contains the good weeks is worthless as a record, and anyone reading it to decide whether to attempt something similar deserves the whole picture.

What it is not

These are one person's impressions, reported honestly and without blinding of any kind. Knowing it is a fasting day plainly affects how the day is experienced and described. They are primary observations from inside the project — they are not evidence of a general effect, and they are kept visibly separate from what research shows.

What this measurement cannot tell you

A single reading is close to meaningless on its own. What matters is the shape of the series across a year, read alongside the fasting schedule, sleep, training and the notes for that week. Nothing on this site is presented as evidence that fasting caused a change: this is one person, with no control condition, and many things change over a year besides the fasting days.