Prognia

Build Your Second Medical Brain

Build Your Second Medical Brain

Transform every note into part of a connected medical knowledge network that grows with you — helping you understand relationships, discover missing concepts and learn more effectively.

Heart FailureACE inhibitorsBeta blockersESC guidelineDAPA-HFHypertensionEjection fractionRAAS system
Knowledge gap: the RAAS system isn’t linked yet — learn it next?

The problem

Notes Shouldn’t Live In Isolation

Traditional note-taking creates hundreds of disconnected documents that become harder to navigate as your knowledge grows. Knowledge shouldn’t be organized by folders — it should organize itself.

  • 1

    Hundreds of orphan files

    Folders multiply, documents pile up, and the connections between them are never captured.

  • 2

    Endless searching

    As your library grows, finding what relates to what becomes a full-time job.

  • 3

    Facts without relationships

    A disease, its drugs and the evidence behind them stay isolated instead of forming a network.

AI understands what you write

Your Notes Become Smarter Over Time

As you write, AI recognizes important medical concepts — diseases, medications, guidelines, articles and related documents — and automatically connects them across your entire knowledge base. Every concept gently lights up and connections animate into place.

  • Recognizes diseases, drugs, guidelines and articles
  • Connects concepts across your whole library
  • Your knowledge graph grows in real time
  • No manual folders or tagging required
You typedHeart Failure Recognized
DiseaseMedicationGuidelineScientific articleRelated document

Everything connects

See Relationships You Would Otherwise Miss

Medicine is connected — your notes should be too. Click any node and the network smoothly expands to reveal related diseases, treatments, guidelines, trials and your own documents, making it easier to understand how everything fits together.

  • Click any node to expand the network
  • See diseases, treatments and evidence linked
  • Understand relationships at a glance
  • A living graph you can explore
Heart Failure
HypertensionACE inhibitorsESC guidelineEjection fraction

Find knowledge gaps

Discover What You Haven’t Learned Yet

AI continuously analyzes your knowledge network and highlights concepts that are still missing — faded nodes that reveal suggested learning topics. The system isn’t only storing knowledge; it’s guiding your next study session where it matters most.

  • Highlights missing concepts as faded nodes
  • Suggests exactly what to study next
  • Focuses your next session where it counts
  • Turns storage into active guidance
Suggested learning topics
RAAS systemgap
Cardiac outputgap
Afterloadgap
Loop diureticsgap

Stop Memorizing. Start Understanding.

Seeing how diseases, treatments, medications and research connect helps transform isolated facts into deeper medical understanding.

Traditional notes

  • Hundreds of disconnected files
  • Organize everything by folders
  • Memorize isolated facts
  • Start over every year

Second Medical Brain

  • One connected knowledge network
  • Knowledge that organizes itself
  • Understand how everything connects
  • A brain that grows with your career

Built For Every Stage Of Your Medical Career

Whether you’re studying for exams, completing your residency or practicing medicine, your Second Medical Brain grows alongside your experience. You never start over — you continue building.

Built for medical educationCited to trusted guidelinesWorks on laptop & iPadPrivate by default

Watch Your Medical Knowledge Grow

Every document, every connection and every concept strengthens your personal medical knowledge network.

  1. 1

    Week 1

    A small network of your first notes.

  2. 2

    Week 4

    Larger, with concepts linking across topics.

  3. 3

    Week 12

    Hundreds of connected concepts.

  4. 4

    Career

    A network that never stops growing.

Questions about your Second Medical Brain

Build Knowledge That Never Stops Growing

Create connected medical notes, discover hidden relationships, and build a living knowledge system that evolves throughout your medical career.

Free forever for students · No credit card required