Sleep Apnea

How can “Sleep Apnea” be diagnosed?

Background: Mr. Luk, regular build, often snores when he sleeps. He gets tired and sleepy easily during the day.

(1) For Mr. Luk’s continuous snoring, can it be “Sleep Apnea”?

(2) How can “Sleep Apnea” be diagnosed?

(3) What treatments are available for “Sleep Apnea”?