Conversation so far:
What is a normal blood sugar level?
What are normal blood sugar levels? Normal blood sugar levels are less than 100 mg/dL after not eating (fasting) for at least eight hours. And they're less than 140 mg/dL two hours after eating.

Question: What does it mean if it's higher than this?
Self-contained rewrite: What does it mean if blood sugar level is higher than normal?