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How to Fix Shift Work Sleep Disorder: 8 Strategies That Actually Help

January 26, 2026
15 min read

Why Am I So Tired in the Morning? Common Causes and Fixes

January 21, 2026
8 min read

Hot Flashes During Period: Are they Normal and How to Manage Them?

January 14, 2026
12 min read

Smart Ring vs Smart Watch: Which is Better?

January 5, 2026
15 min read

17 Luxury Gifts for Men Who Are Hard to Impress

December 24, 2025
7 min read

How to Wake Up Easier: 12 Tips to Beat Grogginess and Start Fresh

December 5, 2025
Activity
3 min read

Rested Heart Rate (RHR): What Increases and Decreases it ?

September 20, 2019
Activity
3 min read

What is blood oxygenation level or blood saturation (SpO2): Uses and More

August 30, 2019
Activity
3 min read

How Circular tracks your Resting Heart Rate (RHR) and how to use it?

August 30, 2019
Activity
5 min read

How to use Heart Rate Variability (HRV)

August 23, 2019
Activity
3 min read

What increases and decreases Heart Rate Variability (HRV)?

August 23, 2019
Activity
3 min read

Continuous Heart Rate monitor

August 11, 2019
Sleep
2 min read

Silent Alarm Clock by Circular® : The perfect smart & silent alarm clock

May 25, 2022
Sleep
3 min read

Bio sensors: What is It and How Do They Work?

January 17, 2022
Sleep
2 min read

Chronotypes and what effect do they have on our daily lives

March 11, 2021
Sleep
1 min read

REM sleep is key to your weight loss journey!

March 7, 2021
Activity
1 min read

Circular calibration period: the new way to improved tracking!

March 4, 2021
Activity
5 min read

Health Metrics: What vital metrics are important to track? And why?

December 22, 2020
News
2 min read

Why ECG is a Game Changer in Circular Ring 2 — And How to Use It Right

March 26, 2025
News
2 min read

How to Use Your HSA or FSA to Purchase the Circular Ring

August 27, 2024
News
2 min read

Explore Your Health Like Never Before with the Advanced Analytics Circle

June 4, 2024
News
2 min read

Unleash Your Potential with the New Sport Session Circle

May 28, 2024
News
3 min read

Introducing the Medication Reminder Feature in Circular: A Leap Towards a Complete Wellness Ecosystem

February 29, 2024
News
2 min read

Kira+ Beta: Revolutionizing Personal Health with AI-Powered Coaching

January 26, 2024

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