No borrowed goals
Every score is answering a question. DN1 starts with yours.
A continuous health coach for people already testing protocols, wearables, labs, training, and supplements. DN1 asks what outcome you care about, asks whether each signal serves that outcome, then uses the evidence to shape what you do tomorrow.
You're already running an experiment on yourself. DN1 closes the loop.
The score said rest. The evidence asked why.
- Recovery score answered
- Generic readiness. Conservative rest default.
- User cared about
- Sharp workday, training adaptation, next-day function.
- Personal signal
- Best H10 chest-strap RMSSD, sharp subjective state, clean physiology.
- DN1 adjudication
- Inside non-clinical training decisions, rest now needs a named reason. Safety red flags and clinician instructions stay upstream.
What it does
- Your perception is the sensor.
You notice what no device measures: energy, mood, how you actually feel. Conversation surfaces it as structured data without making you fill out a form.
- Signals earn their authority.
Your wearable, labs, subjective state, and habits are judged against the outcome you chose. A score can be useful without being in charge.
- Coaching is the surface.
The evidence record constrains what the coach is allowed to claim. You see the plan and the reasoning, not the math.
The coach is the product surface
Coach surface example from the web app. Not a live production proof claim, and not medical instruction. The useful object is the pattern: one conversation, the relevant signals beside it, and a bounded next move.

- Window
- Day 90 outcome review / web coach surface
- Sources
- Conversation, weight trend, supplement ledger, back-pain logs, subjective energy reports
- Evidence tier
- Founder dogfood outcome summary, bounded as proof of method
- Scope boundary
- Training and recovery decision support only. Not diagnosis, treatment, or prescription guidance.
Why this isn't theater
Why I built this
“I thought walking and rucking were my cardiac base. 1,145 matched days said the real levers were weight and intensity, so the plan changed.”Mark, founder.
I built DN1 because I needed a system that could tell me when my own protocols weren't doing what I thought they were doing.
Walking and rucking are not cardiac training for me. Weight and intensity are. The plan changed.
- 200-215 lbs
- RHR 63 / HRV 34
- 215-225 lbs
- RHR 70-72 / HRV 27-28
- 225-235 lbs
- RHR 75-76 / HRV 21-24
- Walking-heavy, no Z3+ (n=45)
- RHR 72.2 / HRV 27.9
- High Z3+ minutes (n=403)
- RHR 65.1 / HRV 32.8
- Walk vs ruck (matched pace)
- Δ 0.8 bpm
Walking moved from “cardiac base” to “anchor practice.” Cardiac training was added separately, on the levers that actually moved cardiac. Rucks dropped Day 41. Norwegian 4×4 intervals added.
Walking stayed in the plan. Not for the heart rate. It stayed because it sets the day's body read, clears the head, and makes harder work more likely. Most tools would have dropped it when the cardiac signal came back flat. DN1 reassigned it to the job it actually performs.
Your version will not be rucks. It might be caffeine, creatine, appetite changes, blood pressure, afternoon fog, or whether a sleep score is actually protecting your day. The job is the same: make the signal prove it serves the goal.
Most people are running an unstructured experiment with their wearables.
You read your wearable in the morning. You change something. You ask a question. You journal sometimes. A few weeks later you can't remember whether the change mattered. That's the workflow most people are running with their tools. DN1 closes it: capture the intervention, set the verification window, measure how the number changed, keep the read bounded, and remember the context.
What the system did for its first user
Founder dogfood, not market validation. The system has been running on me since March 10. Three proof-of-method artifacts from the first 48 days: what it tracked, what it decided, and the moment it got something wrong and updated.
External pilot ledger: not published yet. Founder dogfood is proof of method, not proof of market.
I never rated my sleep on a 1-to-10 scale. The system extracted it from the conversation.
| metric | rows | days |
|---|---|---|
| energy_level | 49 | 33 |
| mood | 44 | 31 |
| mental_clarity | 40 | 31 |
| motivation | 39 | 28 |
| stress_level | 33 | 24 |
| soreness | 26 | 19 |
| sleep_quality_subjective | 24 | 20 |
| digestion_quality | 21 | 17 |
No forms. No scales. The coach reads the morning braindump and the structured rows fall out the back. Every row keeps the verbatim sentence it came from.
What got tested. What got kept. What got dropped. What got reassigned.
Keep: Thiamax survived stack revisions for energy and clarity.
Drop: Ashwagandha was pulled after morning flatness.
Too noisy: Confounded sleep windows stayed inconclusive.
Updated: Magnesium stayed, but the outcome moved off sleep.
| Intervention | Status | What was tested | Why the call |
|---|---|---|---|
| Magnesium glycinate 420 mg | Reassigned | 14 nights at therapeutic dose, sleep score primary outcome | Sleep null. Vascular and autonomic arms moved. Kept the protocol, moved the verification outcome. |
| Ashwagandha 300 mg bedtime | Dropped | Day 17 morning energy flat against textbook recovery markers | Cortisol blunting carried into the morning. Pulled it. |
| Thiamax (TTFD) 200-300 mg | Kept | Energy and clarity arm, day 13 onward | Strong supportive signal. Survives stack revisions. |
| Nattokinase 12,000 FU | Kept | Part of P-004 BP cluster across 41 days | 146/102 to 121/86, physician-monitored. Stack held. |
| Lactoferrin | Dropped | Lowest impact lever at the start of the window | Cut Day 5. Nothing earned its place. |
| Collagen | Dropped | Skin and connective tissue input | Cut Day 2. Vitamin C supports endogenous synthesis. Redundant. |
| Baobab | Dropped | Mechanism unclear at intake | Cut Day 19. Unclear purpose disqualified it. |
| Extended fasting (24 to 48 h) | Dropped | Liver recovery and autophagy framing | Cut Day 13. Multi-model consensus said net negative for body recomposition. |
| Rucks (45 lb) | Dropped | Apr 7 ruck vs Apr 14 walk, matched pace, paired H10 | Delta 0.8 bpm. Rucks reframed as anchor practice, intervals added. |
| Norwegian 4x4 intervals | Added | Day 41 Cardiac Rebuild Protocol launched | Cardiac stimulus the rucks were not delivering. P-011b active arm. |
| Daily morning oral temp | Added | Cheap continuous monitor for thyroid tone | Day 41 onward. Five dollars a day, replaces a panel as the gating test. |
The drop column is what most products will not show you. Adding to the stack is easy. Pulling something is the harder move, and it is the one that earns the trust.
On my best night of the program, the system told me to rest. I told it why it was wrong. It changed.
- Best H10 RMSSD of program
- 33.3 ms
- Sleep duration
- 7.3 h, full parasympathetic descent
- Subjective state
- Sharp, energized, wanting to do more
- Coach default
- Sunday active recovery
- User correction
- Pushed back, cited individual data
The system absorbed the correction into how it reasons about me going forward. The product consequence is simple: a generic recovery score can no longer overrule personal evidence in non-clinical training decisions without explaining why. Rest recommendations now require named reason codes; no context-free scalar authority.
The pattern this names: composite recovery products can lean conservative without naming the reason. DN1 should support action only when the user's evidence supports it, and only inside the consumer training and recovery scope.
See all evidence, including the nulls, the noise, and the drops
Three things compound. The founder dogfood data helped sort which levers appeared to move physiology. The conversation captured what mattered beyond the numbers: constraints, tradeoffs, subjective notes, and whether the plan fit the ordinary parts of the day. And the collaboration shaped a plan that survived contact with real life. No single tool we could find closed all three.
Day 1 to Day 90
What the learning looks like over time, including the things that didn't work.
- Day 1The conversation
You show up with something real. “I'm foggy at 3 PM.” “My doctor says my BP is high.” “I want energy left for my kids after work.” The coach asks the next right question. Everything you say is captured, not just the numbers, but what you are trying to make work.
- Week 2Baseline forming
You start building a personal measurement history: morning HR ranges, sleep architecture, and training response. At this stage the system can organize the evidence, not declare a stable baseline.
- Day 30First hypotheses
The system proposes something testable, on your data, not on a population. “Your evening HRV is consistently low. Let's test whether cutting caffeine after 2 PM changes that over the next ten days.”
- Day 60First keep and first dropSignalMagnesium sleep null; ashwagandha morning flat; rucks Δ 0.8 bpm at matched pace.ReconciliationDecision ledger across 48 days: kept, dropped, reassigned, added.Evidence tierReassigned / droppedTomorrow's planKeep magnesium, but verify vascular/autonomic arms. Pull ashwagandha. Drop rucks as cardiac base and add intervals.
- Day 90Reviewed patterns and one inconclusive
Some interventions may have enough measurements to keep, drop, or reassign. At least one may still be too noisy to call. The system says that out loud and names what would close the question.
- OngoingLife changes, the plan stays editable
You tell the system you'd rather do push-ups between calls than block 45 minutes for the gym. The plan can be revised around that constraint. You miss a day. The system keeps the context, protects the anchor practice, and drafts the next executable move without pretending the original plan still fits.
What this is and isn't
- Not a tracker. Trackers tell you what happened. DN1 tells you what to do about it.
- Not a score. No morning recovery reveal. No traffic lights. The coach absorbs the numbers; you see the plan.
- Not a wellness AI. AI is implementation. The product is personal evidence.
- Not a chat over your data. Stateful and longitudinal. Facts that matter persist with provenance. Nuance decays. You do not restart from zero.
- Not a diagnosis tool. It engages with prescriptions and clinical findings; it does not replace your doctor.
- Not a clinician override. It supports consumer health and fitness decisions alongside care; clinician instructions, symptoms, and safety red flags win.
- A continuous coach that keeps personal evidence tied to the question you chose.
- A personal record that compounds with every signal you give it.
- An evidence ladder that bounds what the coach is allowed to say.
- A system that can ingest blood work, track biomarker context, and flag when a changed number should change the question.
- A system willing to say “we don't know yet” and “we tried; it didn't work.”
You're already paying for the experiment.
Most people in this audience already spend $200 to $500 a month on supplements, devices, peptides, lab panels, sometimes a coach. The cost isn't the question. The question is which of those parts is earning its place.
Paid pricing and refund terms are not live yet. The current public position is a planned offer, not an active price or guarantee claim.
Join the waitlist
We're inviting users in cohorts. Tell us what you're trying to figure out about your body and we'll be in touch when it's your turn.