Most old guys (and women) have 打呼噜 or 睡眠呼吸暂停问题 and should use CPAP (the so called "呼吸机"). Actually some doctors think most people above 50/60 with 打呼噜问题 should use it for better sleep and rest at night so he can more energetic in daytime. Hardly to believe Bide just used it in recent years.
