気配 · KEHAI

kehai

your body is telling you something.

A calmer way to bring the signals, records and context of your health into one place — and begin to see the story they make together.

See the whole picture Why I built it

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why kehai exists

We have never known more about our bodies — and understood ourselves less.

Kehai is building the layer that turns fragmented health data into a coherent personal health story.

Your sleep knows something. Your cycle knows something. Your heart rate, movement, symptoms, labs, habits and the things you notice about yourself all hold pieces of the same picture.

The problem is that those pieces live everywhere.

Kehai brings them together — not to diagnose you, but to help you notice.

Read why I built Kehai →
Historical full-figure anatomical study, representing the lived human body
THE LIVED BODY · FORM / MEMORY / CHANGE
"I could see the numbers. I couldn't always see the story." — Kassandra, Founder

気配KEHAIkeh-hai

A subtle sign of presence — something felt before it can be named.

A presence. A sign.
The feeling that
something
is beginning to emerge.

So much of health begins this way: a small shift in energy, a pattern in sleep, a symptom that repeats, a feeling that something is different. Kehai is a place to keep those signals long enough to see what they become.

one body · many ways of seeing it

Your health is
not one dataset.
It should not always
look like one.

Different kinds of information get different visual language — anatomical study for structure and measurement; classical form for the lived body, rhythm and context. The record stays coherent without flattening everything into the same picture.

01

Keep kinds of truth distinct.

A direct measurement is not an estimate. A user note is not a health sample. Kehai preserves the difference.

02

Let context sit beside data.

Stress, travel, routines and symptoms can matter without being treated as medical conclusions.

03

Surface, don't pronounce.

AI can remember, connect and bring patterns forward. It does not need to pretend it knows what they mean.

Visual grammar

Historical plates,
contemporary questions.

Kehai draws from centuries of anatomical illustration — not as decoration, but as a visual language for where a signal lives in the body.

S. Laskowski · Angiologia TAB VIII
S. Laskowski · Angiologia TAB VIII Circulation as a living map.

Each plate is chosen for clarity, not shock. Kehai treats the body as a place of observation — never as a problem to be solved.

inside kehai

The body changes with the question.

This is the real interface, live — not a screenshot. Switch between Home, Signals, and Composition · Ledger, tap a pin, try dark mode.

9:41 HOME
Good morning

Kassandra.

Wednesday · August 12 · A record that stays yours.

Air nearby

38 AQI
HOME

the air around you.

A local condition, kept separate from your health record.

PM2.5
7.9 µg/m³
Observed
8:20 AM
PurpleAir · preview readingnot a health score

Today's record

Noticed

You logged poor sleep on 5 of the past 7 nights.

This is a count of your entries, not a conclusion.

Keep close

Classical torso on a dark background

the role of ai

Not "here is what's wrong with you."

More like: "This has been showing up lately. You might want to pay attention to it."

AI does what computers are actually good at: holding a lot of information, remembering what we forget, connecting things across time and gently bringing patterns back to our attention.

"You logged this a few times recently.""This changed around the same time.""You may want to look at this together."

two worlds · for now

Stone or Dune.

The same record in two quiet environments. No rainbow dashboard. No gamified score. Just a place that feels calm enough to return to.

your body. your record. your story.

See the whole picture.

Get Kehai on the App Store

Kehai is not a medical device and does not provide medical advice. It does not diagnose, prescribe, or replace care from a clinician.