Endocrine / VISUAL EXPLAINER
HOW INSULIN RESISTANCE STARTS INSIDE YOUR BODY
Insulin resistance means a reduced tissue response to insulin. In muscle this can involve less insulin-stimulated GLUT4 recruitment and glucose uptake; in the liver it can weaken suppression of glucose production. There is no single universal starting defect.
READ THE IMAGE
What the illustration shows
Two skeletal muscle membrane diagrams compare responsive and reduced-response examples under comparable insulin exposure. The left shows three green surface GLUT4 channels and the right one, with blue glucose entering through channels distinct from intact purple insulin receptors. A separate liver inset illustrates glucose output, and muscle, liver and fat icons show tissue diversity. The prominent subtitle states that there is no single universal starting defect. Navy/cyan background with gold AllHumanBody.com branding.
How to interpret this poster
- Prominent no-universal-defect subtitle must remain legible. Not inevitable diabetes, receptor loss, liver GLUT4 transport, measured kinetics or universal sequence. No diet, exercise, diagnostic or treatment advice.
- AI-assisted educational illustration; not physician certification, a diagnosis or individualized medical advice.
- Fine annotations require enlargement; preserve the full uncropped illustration and its qualifiers.
AI-assisted educational illustration, adapted into web-sized images without changing its composition. This is general education, not an individual diagnosis or treatment recommendation.
EVIDENCE / CONTEXT
Sources and what they support
- NIDDK: Insulin resistance and prediabetes ↗
Reduced response across muscle, liver and fat; incompletely understood causes.
- Insulin resistance mechanisms review ↗
Muscle GLUT4 recruitment, hepatic glucose suppression and heterogeneous mechanisms.