Will there come a day when your AI will tell you that you are exhibiting signs of dementia and need to see a doctor?

Gemini:

The short answer is yes, it is technologically possible, and researchers have
already demonstrated that AI can detect early signs of dementia through your
speech and writing patterns years before a human doctor can. However, whether an
AI will actually tell you this depends more on legal, ethical, and regulatory
hurdles than on technology.

1. The Technology Already Exists

Research has proven that AI can identify subtle “digital biomarkers” of
cognitive decline that are invisible to the naked eye:

• Speech and Language: AI models can analyze transcripts or audio of everyday
  speech to predict the progression from mild cognitive impairment to
  Alzheimer’s with over 78% to 89% accuracy. It looks for specific patterns
  such as longer pauses between words, a decrease in the variety of
  vocabulary, and the less frequent use of complex sentence structures.
• Behavioral Monitoring: Consumer devices like the Apple Watch and iPhone are
  already being used in clinical studies to monitor gait, sleep, and heart
  rate variability to identify cognitive health trends.
• Electronic Health Records: AI algorithms have successfully predicted an
  Alzheimer’s diagnosis up to seven years in advance by spotting patterns in
  blood tests and medical visit history.

2. The Practical Reality: Why AI “Hides” It

Even if an AI “knows” you are showing signs of dementia, it is currently
programmed not to tell you directly due to several major barriers:

• Legal Liability: AI companies like OpenAI and Google have strict policies
  against providing medical diagnoses. In fact, OpenAI is currently facing
  lawsuits for cases where its AI allegedly gave misleading medical advice. To
  avoid massive liability, these companies use “refusal filters” that trigger
  disclaimers like: “I am an AI, not a doctor. Please consult a medical
  professional.”
• FDA Regulation: For an AI to legally “diagnose” a condition like dementia,
  it must be cleared as a Medical Device by the FDA. Currently, most AI
  chatbots are marketed as “wellness” or “informational” tools to avoid the
  rigorous clinical testing and oversight required for medical devices.
• The “False Positive” Risk: Dementia is a life-altering diagnosis. If an AI
  tells a user they have dementia and is wrong (a “false positive”), the
  psychological and social harm could be devastating. Ethical guidelines
  generally suggest that such sensitive news should be delivered by a human
  clinician who can provide emotional support and follow-up testing.

3. What the Future Likely Looks Like

Rather than a chatbot bluntly saying, “You have dementia,” the future of this
technology will likely roll out in more subtle, integrated ways:

• The “Doctor’s Assistant” Model: AI will likely alert your physician rather
  than you directly. For example, a tool called StateViewer is already helping
  doctors identify dementia types up to three times faster by analyzing brain
  scans.
• Proactive Health “Observations”: Companies like Apple and Amazon are moving
  toward “proactive” health monitoring. You might receive a notification
  similar to existing heart-rate alerts: “A significant change in your typing
  speed or word usage has been detected over the last 6 months. You may want
  to share this data with your doctor.”
• Personal Health Context: Features like Health in ChatGPT already allow users
  to connect their medical records and Apple Health data. In the future, this
  AI could summarize trends in your cognitive performance to help you “prepare
  for a doctor’s visit,” placing the final diagnosis back in human hands.

Summary

While your AI likely already has the data to spot early signs of dementia, it is
currently “gagged” by safety policies and laws. There will likely come a day
when your phone suggests you see a doctor for a “neurological check-up,” but for
the foreseeable future, the AI will act as a warning bell for your doctor rather
than a medical professional delivering a diagnosis directly to you.

Mike:

I was planning on asking it more follow up questions, but I ran out of time because WordPress locked me out of my site because I didn’t remember my new password (ironic, considering the subject) It was an interesting experience because WordPress.org does not send a confirmation email very quickly so Gemini basically taught me a backdoor to change my password.