When does type 2 diabetes typically occur?

• A. When you pursue too much exercise
• B. When your body stops responding to insulin
• C. When you have too many binding sites
• D. When your body produces too much insulin

Answer: (B)

Type 2 diabetes typically occurs because the body's cells become resistant to insulin. When cells don’t respond well to insulin, glucose stays in the blood instead of moving into cells to be used for energy. The pancreas may initially produce more insulin to compensate, but over time it can’t keep up, and blood glucose remains high. That pattern—the body not responding properly to insulin—best describes the usual onset of type 2 diabetes. The other ideas don’t fit: excessive exercise is not what causes it; the concept of binding sites isn’t the mechanism here; and while insulin levels can be high early on, the problem driving type 2 is insulin resistance rather than overproduction.