Endocrine Matters Type 1 Diabetes Explained - How Insulin Really Works (Basal, Bolus, CGMs & Pumps)
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Welcome to the Endocrine Matters Podcast.
This episode is sponsored by Complete Medicine and HeyHealthy.
Hello and welcome back to Endocrine Matters. I’m Dr. Arti Thangudu—endocrinologist, diabetes specialist, and someone who truly lives and breathes blood sugar.
This episode is deeply personal and incredibly important to me. Over the past few months, I’ve felt a strong call to return to type 1 diabetes education and awareness in a more urgent way. In my clinic, I continue to meet adults who have lived with type 1 diabetes for decades but were never truly taught how insulin works in real life—with food, stress, sleep, illness, hormones, and emotions all happening at once.
At the same time, type 1 diabetes has touched my own family. And when it hits close to home, you feel the weight of it differently—the fear, the constant decisions, the loneliness. I’ve also become acutely aware of how much community support is missing for children, teens, college students, adults, and parents living with type 1 diabetes.
One thing I want to be crystal clear about from the very beginning:
High blood sugars are not your fault. Low blood sugars are not a moral failure.
Type 1 diabetes cannot be managed from the outside. No doctor, pump, or algorithm can fully understand your body without you at the center. When patients understand why insulin doses are adjusted, fear decreases, shame fades, and confidence grows. The goal is not perfection—it’s understanding and empowerment.
In this episode, we walk through:
- Basal vs bolus insulin and how they truly work
- Why overnight highs don’t always mean you need more basal insulin
- The dangers of hypoglycemia and why we always treat lows first
- Insulin-to-carb ratios, insulin sensitivity factors, and insulin stacking
- How fat, protein, stress, exercise, hormones, and sleep affect blood sugar
- The role of CGMs, insulin pumps, and hybrid closed-loop systems
- Why A1C alone doesn’t tell the whole story
- Navigating diabetes burnout and the transition from childhood to adulthood
Type 1 diabetes is demanding—but it does not define your future. With education, support, compassion, and community, you can live a long, healthy, fulfilling life.
Thank you for being here and for being part of this community.
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Until next time—take care of your blood sugar, and take care of yourself. 💙