What is the Circadian Wellness Clock?

The Circadian Wellness Clock is an advanced smartwatch application designed for the Bangle.js 2. It is engineered to estimate your biological (circadian) time and provide real-time insights into your body’s daily rhythms. Drawing on the latest chronobiology research and a UK patent-pending methodology, it empowers users to monitor, understand, and optimise their sleep-wake cycles and circadian alignment.

Key Features

1. Real-Time Biological Time Estimation

• Biological Clock on Your Wrist:
  The app continuously estimates your internal body time using a composite Circadian Rhythm Score (CRS), which translates data from physical activity, sleep patterns, heart rate (in beats per minute, BPM), and ambient light exposure.

• Personalised Reference Points:
  Customise the reference for biological time, such as DLMO (Dim Light Melatonin Onset) or CBTmin (Core Body Temperature Minimum), to suit your rhythm.

2. Circadian Rhythm Score (CRS)

• Data-Driven Scoring:
  CRS is calculated from four key metrics:

  • Sleep Timing

  • Physical Activity

  • Heart Rate Variability (or BPM)

  • Light Exposure
    Each metric is weighted and scored using patent-based formulas, providing a dynamic measure of circadian stability.

• Visual Feedback:
  Instantly view your CRS and biological time, updated in real-time.

3. Comprehensive Logging & Visual Trends

• 24-Hour History:
  The app maintains and visualises a 24-hour history of CRS, steps, BPM, and light exposure.

• Trend Charts:
  Easily access a visual bar graph of your CRS trend for the past day—spot disruptions or improvements at a glance.

4. Smart Notifications & Health Reminders

• Circadian Misalignment Alerts:
  Receive instant notifications if your biological time becomes misaligned with local time (e.g., after jetlag or shift work).

• Sleep Window Suggestions:
  Displays your optimal sleep window based on your personal settings and detected sleep patterns.

• Hydration Reminders:
  Set automatic reminders to stay hydrated throughout the day.

5. User Customisation

• Intuitive Menus:
  All settings, including sleep window, theme, notifications, and biological time reference, can be adjusted from the watch.

• Theme Selection:
  Choose from several colour themes for day or night readability.

• Data Export:
  Export your historical data for personal research or sharing with health professionals.

Scientific Foundation

The Circadian Wellness Clock is based on the patent-pending invention:

“Wearable Circadian Rhythm Score (CRS) System for Estimating Biological Time”
UK Patent Application: GB2509149.7
Inventor: Jakub Tencl, Ph.D.

The underlying algorithm synthesises chronobiological research with practical wearables data, making sophisticated circadian analytics accessible to anyone.

Open Source & Licensing

• Open MIT License:
  The app is distributed under the MIT license. You may use, modify, and share it freely.
  If used commercially or in derivative works, please attribute the author and reference the patent.

• Source code: GitHub

Who is it for?

• Sleep enthusiasts, biohackers, and health professionals

• Travellers seeking to beat jet lag

• Shift workers optimising rest and alertness.

• Anyone seeking to understand and improve their daily rhythm

Getting Started

1. Install on Bangle.js 2:
   Available via the Bangle.js App Loader or direct download from GitHub.

2. Set Your Preferences:
   Use the intuitive menu to set your sleep window, notifications, and theme.

3. Wear and Go:
   The app runs automatically, logging and analysing your data to provide continuous circadian insights.

Take control of your internal clock.
Maximise energy, improve sleep, and optimise health with the Circadian Wellness Clock for Bangle.js 2.