program.js

const express = require('express');
const app = express();

// Step 1: Identify Sensors
// This will depend on the specific libraries you use for each sensor

// Step 2: Data Collection and Processing
app.post('/collect-data', (req, res) => {
    // Collect and process data from sensors
    // Detect abnormal patterns and potential risks
});

// Step 3: State Management
app.get('/user-state', (req, res) => {
    // Determine the user's state based on processed data
    // Return the user's state
});

// Step 4: Notification System
function sendNotification(message) {
    // Establish a notification system within the app to alert:
    // Emergency services, Family members
}

// Step 5: Emergency Protocols
app.post('/emergency', (req, res) => {
    // Implement protocols for critical situations
});

// Step 6: User Interface
// This will be handled on the client side

// Step 7: Testing and Iteration
// This will be part of your development and deployment process

// Privacy and Security Considerations
// Make sure to use HTTPS and secure your endpoints

app.listen(3000, () => console.log('Server is running on port 3000'));