CogniCare: A Holistic Approach to Early Dementia Detection and Cognitive Wellness

A comprehensive, user-friendly mobile and web application that serves as a proactive partner in the journey of cognitive health.

Project Structure

CogniCare/
├── backend/          # Node.js + Express API
│   ├── server.js     # Main server file
│   ├── package.json  # Backend dependencies
│   └── .env          # Environment variables
│
└── frontend/         # React + Vite application
    ├── src/
    │   ├── App.jsx   # Main App component
    │   ├── App.css   # App styles (light theme)
    │   ├── main.jsx  # Entry point
    │   └── index.css # Global styles
    ├── index.html
    ├── vite.config.js
    └── package.json  # Frontend dependencies

Core Pillars

1. Cognitive Diagnosis 🧠

Multi-modal assessment engine for early dementia detection:

• Memory & Logic Quizzes: Interactive tests for memory recall and problem-solving
• Voice Pattern Analysis: AI-powered speech analysis for vocal biomarkers
• Facial Expression Recognition: Emotion detection and analysis
• Reaction & Coordination Tests: Psychomotor speed and coordination assessment

2. Brain Stimulation 🎮

Mental gymnasium to slow cognitive decline:

• Puzzles: Logic puzzles, crosswords, sudoku
• Memory Games: Pattern matching and sequence recall
• Problem Solving: Strategic challenges and critical thinking
• Language: Word games and vocabulary builders

3. Support & Guidance 🤝

Clear roadmap for action:

• Find a Specialist: Location-aware directory of healthcare providers
• Reviews & Ratings: Community-based review system
• Your Dementia Roadmap: Personalized guidance and resources
• Weekly Progress Tracker: Track engagement and improvement

Technical Features

• ✅ Backend: Node.js with Express.js
• ✅ Frontend: React 18 with Vite
• ✅ Light Theme: Modern, accessible UI design
• ✅ AI-Driven Analysis: Comprehensive cognitive profiling
• ✅ Real-time Progress Tracking: Performance analytics and insights

Getting Started

Prerequisites

• Node.js (v18 or higher)
• npm or yarn

Installation

1. Install Backend Dependencies

   cd backend
   npm install

2. Install Frontend Dependencies

   cd frontend
   npm install

Running the Application

1. Start the Backend Server (in the backend directory)

   npm run dev

   The backend will run on http://localhost:5000

2. Start the Frontend (in the frontend directory, in a new terminal)

   npm run dev

   The frontend will run on http://localhost:3039

3. Access the Application Open your browser and navigate to http://localhost:3039

API Endpoints

• GET / - Welcome message
• GET /api/health - Health check endpoint

Environment Variables

Backend (.env)

PORT=5000
NODE_ENV=development

Frontend (production)

For production builds the frontend reads Vite variables from .env.production during the build step.

Create or update frontend/.env.production with:

VITE_API_URL=https://cognicare-back.vercel.app

When you build/deploy the frontend (for example to Vercel), Vite will embed the value above and the running frontend will send API requests to the specified backend.

Optional: test against remote backend during local dev

If you want your local dev server to proxy API calls to the deployed backend (instead of your local backend), set the DEV_PROXY environment variable before starting Vite:

# Example: use the deployed backend during development
export DEV_PROXY=https://cognicare-back.vercel.app
npm run dev

The dev server will use DEV_PROXY (or VITE_API_URL) as the proxy target. If neither is set it will default to http://localhost:5050.

Tech Stack

Backend

• Express.js - Web framework
• CORS - Cross-origin resource sharing
• dotenv - Environment variable management

Frontend

• React 18 - UI library
• Vite - Build tool and dev server
• Axios - HTTP client

Development

• Backend runs on port 5000
• Frontend runs on port 3039
• API calls from frontend are proxied to backend automatically

Building for Production

Backend

cd backend
npm start

Frontend

cd frontend
npm run build
npm run preview

License

ISC

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Built with ❤️ for CogniCare