HydroLogix — Hydration Benchmark Dashboard

HydroLogix is an interactive hydration benchmarking app focused on hot, dry Southwest conditions.

What it does

• Recommends Estimated Ideal Intake and Estimated Dehydration Rates for current conditions
• Calculates baseline hydration from weight and age
• Applies environmental multipliers for:
  • temperature
  • humidity
  • dew point
  • altitude
  • activity level
• Recommends hourly ideal intake rates and estimated dehydration rates from physiology + environment
• Uses typed hours outside (fill-in number field); 0 uses room temperature and higher values increase exposure demand
• Triggers a High Demand state when heat index crosses threshold
• Renders comparison cards, normalized bars, and actionable insights
• Uses baseline component water-loss rates of 0.5 oz/h breathing, 1.2 oz/h evaporation/sweat, and 1.0 oz/h waste
• Auto-fills environmental factors from location input in-browser (city, city+state, or US ZIP via Open-Meteo geocoding + weather APIs)
• Supports a US/SI unit toggle for unit-based entries (weight, temperature, dew point, and altitude)

Core logic

• calculateEvaporativeDemand(...) isolates environmental burden logic
• calculateHydrationBenchmark(...) computes top-level benchmark demand
• render() orchestrates card/chart/insight updates

Data model guidance

Use hydration intake records shaped like:

• timestamp (ISO-8601 string)
• volume_ml (number)
• fluid_type_coefficient (number)

Run locally

Browser-only (no server hosting)

1. Open index.html directly in your browser (or host as static files only).
2. Enter a location (for example, Phoenix, Phoenix, AZ, or 85004) and click Auto-fill Weather.
3. Environmental factors are fetched client-side and applied to the hydration model.

Optional Node local server

1. Install dependencies: npm install
2. Start server: npm start
3. Open: http://localhost:3000

Test

• npm test

Notes

This tool provides scenario guidance and is not medical advice.