Maybe their longevity is because they roughly versed in TCM, acupuncture &moxibustion, their uprightness and kindness, the uncontaminated food and drinking, their disciplined life and no bad hobbies.

• 可能是粗通中医、针灸，为人正直善良、所饮之水、及食物无有污染、生活有规律、无不良嗜好等等有关吧!