The interpretation layer between
indoor environments and human biology

The biological brain for indoor environments

HearthlyLabs reads the everyday signals a space gives off — light, air, temperature, humidity, sound — and translates them into evidence-grounded guidance on how that space is likely to affect your circadian rhythm, sleep, cognitive performance, and recovery.

External exposure · one space · one day

06:0012:0018:0000:00

Light

mEDI lux

Air

CO₂, ppm

Temperature

°C

Sound

dBA

Humidity

% RH

Fused reading

One number

Circadian regulation

Light

Sleep

Light

Cognitive performance

Air·Temperature·Sound·Light

Recovery

Temperature·Sound·Humidity

Environment inBiology-aware interpretationOutcomes out

Five signals · one body · accumulated over time

Exposome Intelligence

≡ Exposome + AI

The exposome is your cumulative environmental exposure over time, and what it does to your biology. A tool that forgets yesterday cannot read it. HearthlyLabs is built on the four things the science requires.

01

Accumulate

Every reading builds one continuous picture of a space over time.

02

Personalise

Interpretation is anchored to your own body clock, not an average.

03

Fuse

Five signals combine into a single environmental-load number.

04

Explain

Every reading opens to its mechanism, evidence, and confidence.

Grounded in peer-reviewed research

An emerging, funded scientific field

~0%

Of life spent indoors

Most lifetime environmental exposure happens in spaces almost nobody understands.

Klepeis et al. 2001 · NHAPS · 87% indoors, 6% in vehicles

0+

Scientists · 30+ countries

The Human Exposome Moonshot set the field's 60-year agenda: from documenting environmental harm to designing healthier environments.

Washington DC · May 2025

€0M

European research funding

Nine Horizon 2020 projects, 129 research groups across 24 countries. The concept existed for decades; the tools did not.

European Human Exposome Network · 2020–2025

AI is “the Apollo Guidance Computer of the exposome.”
Veile & Hartung · Frontiers in Artificial Intelligence · 2025

Explainable by default

Every reading opens to its evidence

Pattern, mechanism, likely impact, and how confident we are. Directional, never deterministic. HearthlyLabs interprets the environment, not you.

80Fused load

Five signals, fused to one number that grows with you over time.

HearthlyLabs app showing a fused reading of 27 with the two signals limiting focus

Per-signal precision

Each signal reports only what its own evidence supports

Every claim is scoped to the outcomes the primary literature actually establishes, and labelled with how strong that evidence is.

Light

Circadian regulation and sleep timing; daytime alertness and mood

>250 mEDI lux day · <10 evening · <1 sleepHigh • Circadian & Sleep
Air · CO₂

Higher-order cognition and decision-making — not mood. CO₂ is a ventilation proxy

< 1000 ppmHigh • Ventilation
Temperature

Cognitive performance, focus, fatigue, comfort

21–23 °CModerate • High
Sound

Attention, cognition, mental load, autonomic load

< 45 dBA · focus workModerate
Humidity

Comfort, respiratory & mucosal health — not cognition directly

40–60% RHModerate • Comfort

Grounded in peer-reviewed science

Brown 2022 · Satish 2012 · Allen 2016 · Cedeño-Laurent 2018 · Lan 2010 · WHO 2018 · Mo 2022 · Wargocki 2024

We measure the environment
We personalise the interpretation

Directional, evidence-based, never medical — we never monitor your body

Be among the first to use it

Opening in small batches, starting with design partners who want to shape it with us.