When you hear time in range, the percentage of hours your blood sugar stays between 70 and 180 mg/dL each day. Also known as glucose time in range, it’s quickly becoming the gold standard for measuring how well diabetes is controlled—not just over months, but day by day. Unlike A1C, which gives you a three-month average, time in range shows you exactly how much of your day you’re spending with blood sugar in the safe zone. That’s the difference between guessing and knowing.
It’s not just about avoiding highs. Staying in range means fewer crashes, less fatigue, and less risk of long-term damage. People using continuous glucose monitors (CGMs), wearable devices that track glucose levels every few minutes without fingersticks. Also known as glucose sensors, they make this possible. These devices don’t just alert you when your sugar spikes or drops—they show you patterns. Did your sugar dip after lunch? Did coffee spike you at 10 a.m.? Time in range turns those questions into clear answers.
And it’s not just for people on insulin. Whether you’re managing type 2 with diet, metformin, or GLP-1s, knowing your time in range helps you adjust meals, activity, or meds before problems build up. Studies show that spending just 10% more time in range reduces complications. That’s not a miracle—it’s measurable progress.
What you’ll find in the posts below are real, practical ways to improve your time in range. From how to read your CGM trends to how sleep, stress, and even certain medications affect your numbers, these articles cut through the noise. You’ll learn how to pair your meds with daily habits, why insulin storage matters during travel, and how to avoid drug interactions that throw your glucose off track. No fluff. Just what works.
Time in Range (TIR) using CGM gives a real-time view of blood sugar control beyond HbA1c, helping people with diabetes make smarter daily choices to prevent highs, lows, and long-term complications.
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