Hand AI your home blood-pressure log and plan what to tell your doctor
A Japanese blogger who writes as 酔いどれ (yoidoreo) about bringing AI into life for him and his wife, a couple in their 70s, has checked his blood pressure every morning since cancer treatment more than ten years ago. When his top number crept up for a few days, he gave a month of readings to Claude, which helped him see the change and plan what to tell his doctor.
What they did
His readings go from a Bluetooth blood-pressure cuff into the Health app on his iPhone. His usual reading is about 117 over 59, but for several days the top number had been 128 to 132. He saved a month of readings as a PDF and asked Claude how to read them. Then he did the same with his wife's readings.
How it went
Claude said a rise of more than 10 points that lasts several days is worth noting, and suggested he bring the record to his next visit and tell the doctor what had changed, so the doctor could judge. For his wife, it said her numbers were generally within the target range. She was looking over his shoulder and asked if she could put in her own readings, the first time she had wanted to use AI herself. His post is in Japanese.
Worth knowing
AI can't diagnose you or tell you whether a reading is safe, and it can misread numbers from a file, so check its table against your monitor or app. Never start, stop, or change a medicine because of what a chatbot says. Check with your doctor or pharmacist, and if a reading is very high or you have chest pain, a severe headache, shortness of breath, weakness, or trouble seeing or speaking, call your doctor or 911 right away. Remove your name, birth date, and ID numbers before you share a health file.
Try it yourself
Copy this into Claude (or any AI assistant). Replace the parts in [brackets] with your own details.
Here are my home blood-pressure readings for the past [number] weeks (date, time, top number, bottom number, pulse). My usual reading is about [top]/[bottom]. I've removed my name and personal details. Please: 1) Put the readings in a simple table. 2) Point out any days or stretches that differ from my usual, without telling me what they mean medically. 3) Help me write a short, factual note for my doctor about what changed and when, and anything else that changed in that time, such as [sleep / stress / new foods / a new medicine]. 4) Suggest three questions to ask at my next visit. Don't diagnose me or suggest changes to my medicines. [paste readings or attach file]
Source: 酔いどれ (yoidoreo), note (yoidoreo's blog), May 3, 2026. Read the original →
First-hand account by the person who did it. Summarized in our own words.
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