Up until now, every time you asked ChatGPT a health question it was basically guessing. You'd type "why am I so tired lately" and get a sensible, completely generic answer, because it had no idea how much you slept last night or what your resting heart rate has been doing for a month. It was answering for an average person, and you are not an average person.
That changed. OpenAI built a Health mode directly into ChatGPT, and it can read your real data. Sleep, steps, heart rate, workouts, all pulled straight from the Health app that has been quietly collecting this stuff on your iPhone for years. Go one step further and it can also read the actual medical records sitting in your hospital's patient portal.
OpenAI first tried this back in January as a limited release. On July 23 they rolled it out properly to everyone in the US and made it much better at the part that matters, which is comparing a new result against your old ones and telling you what changed.
Who Can Use It Right Now
United States only, 18 and over, on the iPhone app and on ChatGPT in a web browser. It works on the Free plan, and on Go, Plus and Pro. Free accounts run it on GPT-5.5 Instant, paid accounts get GPT-5.6 Sol, which OpenAI calls their strongest health model. There is no Android version yet, and it does not work inside Codex.
What Changed
Why am I so tired? You used to get a general list of reasons tiredness happens. Now you get your actual sleep for the last few weeks, next to your training load and your resting heart rate.
Is this blood test okay? You used to get a textbook explanation of the marker. Now you get that marker compared against your own previous results, with the direction it's moving.
Plan my week of training. You used to get a generic template that assumed you were rested. Now you get a plan built off how you actually slept and recovered.
What did my doctor mean? You used to get a guess based on what you could remember and retype. Now you get the real visit note, translated into plain English.
The One-Time Setup
Ten minutes, once. Do it on your iPhone, not your computer, because the Apple Health connection has to happen on the phone that holds the data. Once it's connected there it works everywhere, including the website on your laptop.
Step 1: Open the ChatGPT app on your iPhone. Update the app in the App Store first. Health will simply not appear on an old version, and OpenAI says your iOS software needs to be up to date too.
Step 2: Open the sidebar and tap Health. Tap the menu icon top left, or swipe in from the left edge. Look down the list for Health. Tap it, then tap Get started.
Step 3: Connect Apple Health. Choose Apple Health. Your iPhone shows its own grey and white permission screen with a long list of categories. That screen is Apple's, not OpenAI's, which is the whole point.
Step 4: Pick exactly what it's allowed to see. For everything in this guide, four categories matter:
- Sleep - the single most useful one. Almost everything else gets anchored to how you slept.
- Steps - your actual daily movement, usually very different from what you think it is.
- Heart Rate - resting heart rate is the clearest early signal that your body is under strain.
- Workouts - what you did, how hard, how often, so it can plan the next week around it.
There's a Turn On All button if you'd rather hand over everything. Less data means less useful answers, more data means better answers and more of your life sitting in an app. Pick what you're comfortable with, then tap Allow.
Tip: You can change your mind later without touching ChatGPT. On your iPhone go to Settings, then Health, then Data Access & Devices, then tap ChatGPT. Switch off any category, or cut it off completely, in about five seconds.
Heads up: Don't panic if nothing shows up straight away. The first sync can take anywhere from a few minutes to a few hours depending on how much history is on your phone.
If You Can't See Health Anywhere
It might be hiding under More. Scroll the sidebar all the way down and look for a More menu. It's often tucked in there rather than sitting out in the open.
Your app is out of date. The most common one by a mile. Update ChatGPT in the App Store, fully close the app by swiping it away, then reopen it.
You're not in the US. Health is United States only right now. Not the UK, not Canada, not Europe.
You're on the waitlist. Even inside the US it's rolling out in waves. If you get offered a waitlist instead of a Get started button, join it.
Tip: There's a back door. Ask a health question in a normal chat, something like "can you look at my sleep from this week," and ChatGPT will often offer to continue in Health and walk you into the setup itself.
One Thing That Trips People Up
Apple Health only holds what your phone and watch actually put into it. If you track sleep on a Whoop, an Oura ring or a Garmin, open that app's settings and make sure it's writing data into Apple Health. Some apps keep their readiness and recovery scores to themselves by default.
Test the connection before you run anything big:
What health data can you actually see from me right now? List the categories, how far back the history goes, and the most recent date for each one.
Connecting Your Medical Records (Optional)
Apple Health tells it how you're living. Your medical records tell it what's actually happening inside you. Connect both and it can put a new lab result next to the one from two years ago and tell you in plain English what moved and whether that matters.
One Medical and Function Health are supported directly. Beyond those, most hospitals and clinics are reachable, including basically anywhere running MyChart. Behind the scenes OpenAI works with a company called b.well, and between them they reach over 2.2 million US providers and more than 300 health plans.
- Go back into Health and choose connect medical records. This can only be done from inside Health, US only, 18+.
- Search for your hospital, clinic or doctor's office, then sign in with the exact same username and password you already use for that patient portal. OpenAI never sees that password.
- Repeat for each place you've been treated. Records can take a while to pull through.
The Two Warnings You Should Actually Read
1. Your records stop being HIPAA protected the moment they leave. Once your data is inside ChatGPT it's governed by OpenAI's own privacy terms, not HIPAA. That's not a scandal, it's just the honest shape of it, and you should decide with that in front of you. Disconnect and the data is gone from their systems inside 30 days.
2. Never use it to judge an emergency. A Mount Sinai study found it under-called more than half of real emergencies, and that the crisis safeguards fired inconsistently. Treat it as a translator, not a triage nurse. Emergencies get a phone call.
The Core Prompt
Open Health, paste this in, send it.
Look at my last 30 days of Apple Health data: sleep, steps, resting heart rate and workouts. Tell me what the data actually says about how I'm doing, what the trend is on each one, and then build me a realistic plan for the week ahead based on how I've actually slept and recovered rather than an ideal week. Explain your reasoning in plain English.
Five More Prompts Worth Having
1. Understand a blood test without googling every line
Go through my most recent blood test line by line. For each marker tell me what it measures, whether mine is in range, and how it compares to my previous results. Flag anything moving in the wrong direction.
2. Translate what my doctor said
Take my most recent visit note and rewrite it in plain English, then list the questions I should have asked and still can.
3. Connect how I feel to what the data says
I've been feeling [describe it]. Look at my sleep, resting heart rate and training load over the same period and tell me whether anything in the data lines up with it.
4. Fix one thing instead of everything
Pick the one number in my health data that most needs fixing, tell me why you picked that one, and build me a realistic plan to fix it over the next 90 days.
The word realistic is doing a lot of work there. Ask without it and you'll get a plan that assumes you have two spare hours a day. Forcing it to pick one number is the point, because the reason most people change nothing is that they tried to change six things at once.
5. The one everybody should run
Looking at all my data over the last few months, what's quietly getting worse that I haven't noticed?
If you only run one prompt from this guide, make it this one. Nothing falls apart overnight, it drifts, in a direction you don't notice because you're comparing today to yesterday instead of to eight months ago. Your average sleep drops forty minutes over a season. Your resting heart rate creeps up four beats. You'd never catch either. A computer looking at the whole trend line catches both instantly.
Tip: Whatever it hands back, ask one follow up: "which of these is worth mentioning to my doctor, and which is just normal life?" It's good at separating the two, and it stops you walking into an appointment worried about something that doesn't matter.
The @Health Trick
You do not have to go into the Health tab every time. Pull your health data into any normal conversation just by typing @Health in your message. Planning a trip, writing a training block, asking about a supplement, add @Health and it answers with your real numbers instead of guessing.
Tip: Type the @ symbol and pause for a second, because a little menu pops up with everything you can pull in. Tapping Health from the menu is faster and safer than typing it out.
Your Action Plan
- Today: update the app, open the sidebar, tap Health, connect Apple Health with Sleep, Steps, Heart Rate and Workouts switched on.
- Tomorrow: run the core prompt once the first sync has finished.
- Once a month: run "what's quietly getting worse that I haven't noticed?"
Stop asking it about the average person. Start asking it about you.