Li, a doctor at NTU Hospital, opened a special clinic for insomniacs ten years ago. He has heard all manner of complaint about sleeplessness. The comment that left the deepest impression was this: "It's been so long since I've had the sweet taste of a good night's sleep!"
李宇宙設立「睡眠障礙特別門診」已十年，聆聽病患對睡眠障礙的種種抱怨，最令他深刻難忘的一句話是：「我已經很久沒有嚐到睡個好覺的滋味了！」