Which condition involves insufficient insulin production or usage?

• A. Asthma
• B. Diabetes
• C. Hypertension
• D. Arthritis

Answer: (B)

Insulin is the key hormone that allows cells to take in glucose from the bloodstream. When there isn’t enough insulin produced, or the body's cells don’t respond properly to insulin, glucose remains high in the blood. This situation defines diabetes, a metabolic disorder of impaired insulin production or insulin action. Asthma involves airway inflammation, hypertension is high blood pressure, and arthritis is joint inflammation, none of which revolve around insulin production or use.