IO8 Living Lab · near Lisbon
The IO8 Research Journal
What the Living Lab measures, what the science establishes, and what we refuse to claim.
01 · Read by profile
Who is reading?
Start from your role. Each path is a reading order written for you.
02 · Read by subject
The questions a reader has in mind
Answers and research articles, grouped by subject. A new article joins its subject as soon as it is published.
03 · 108 Questions
108 questions to the founder
Stéphane Pariente, founder of IO8, answers in writing 108 questions about the project: where it comes from, what is measured, what is refused. Eleven chapters, short answers, numbered from 1 to 108.
I thought I had found my ikigai.
I was wrong.
IO8 is where the real journey begins.
The book on the genesis of IO8 is coming soon
05 · Table of contents
The whole journal
Twenty-seven research articles in five series, each with its sources.
Series 1 · 10 articles
What your advanced guests already expect
Total darkness: why a hotel room is almost never dark
Silence: below 30 dB at night, what it takes
Room temperature: why 18 to 19 °C
Air and CO₂: 800 ppm, what is measured at night in a closed bedroom
Water: filtered in the room, and pool water
Strength after 55: why a cardio room is not enough
Evening and morning light: 2,700 K and 1,000 lux
Bedding and sleep: what a sleep sensor measures, and what it does not tell you
Recovery: heat, cold, red light, compression
The data the guest keeps: why the hotel should retain nothing
Series 2 · 3 articles
What exists nowhere else
Why no one publishes the measurements of their rooms
Device lending in hotels: from Four Seasons to the four-star room
The instrumented room at 1,700 $ a night, and how to make it accessible
Series 3 · 4 articles
The economics of the longevity room
How much a wellness room sells for: the published figures
The device paid off in fifteen nights: the calculation, hygiene, breakage, margin
The longevity menu: how a spa moves from cost centre to revenue centre
The longevity segment: who they are, how many they are, what they spend
Series 4 · 6 articles
A hotel director's questions
Is it profitable for a small hotel?
You sell equipment: are you neutral? Transparency as a method
Why we do not measure your guests
Audit or Mission: what changes
Series 5 · 4 articles
Technical subjects
Lending a device to a guest: hygiene, card hold, breakage, liability
Measure rather than promise: longevity washing and what we refuse to write
The Audited by IO8 label: what it says, what it does not say
The ten sub-objectives: the grid, its two levels, its level of evidence
