Category: CGM Basics

Learn how continuous glucose monitors work: trend arrows, compression lows, sensor accuracy vs finger sticks and Apple Watch setup, in plain English.

CGM Basics
Dexcom G7 Apple Watch Not Updating? How to Fix It

If your Dexcom G7 stopped showing glucose on your Apple Watch, the fix is usually simple. Here are the common causes and…

July 31, 2026 6 min read
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CGM Basics
LibreLinkUp Not Updating? Fix Signal Loss & Stale Data

Stuck on an old reading or a signal loss message in LibreLinkUp? Here are the real causes and the fixes that get…

July 22, 2026 6 min read
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CGM Basics
Glucose on Your iPhone Lock Screen and Home Screen

Widgets and Live Activities let you see your CGM number and trend arrow at a glance, without opening an app. Here is…

July 17, 2026 6 min read
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CGM Basics
Dexcom Share vs Dexcom Follow: What’s the Difference?

Dexcom Share and Dexcom Follow sound alike but do different jobs. Here is a plain-English breakdown of who uses each and how…

July 15, 2026 6 min read
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CGM Basics
What Is a Compression Low on a CGM? Causes & Fixes

A compression low is a false low reading caused by pressing on your CGM sensor. Here is how to recognize one, prevent…

July 13, 2026 6 min read
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CGM Basics
Predictive Low Glucose Alerts: How Early Warnings Work

A predictive low glucose alert warns you minutes before you actually go low, giving you time to act. Here is how these…

July 8, 2026 7 min read
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CGM Basics
Why Your CGM Reading Is Different From Your Finger Stick

CGM and finger stick numbers rarely match exactly. Here is why they differ, what a compression low is, and when to trust…

July 3, 2026 6 min read
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CGM Basics
CGM on Apple Watch: See Your Glucose on Your Wrist

Your Apple Watch has no glucose sensor, but a paired iPhone app can put your current number, trend arrow and low alerts…

July 2, 2026 9 min read
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CGM Basics
What Is a Continuous Glucose Monitor & How It Works

A clear, beginner-friendly guide to what a continuous glucose monitor (CGM) is, how it measures glucose, and how to read its real-time…

July 2, 2026 5 min read
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