老年医学家和科学家们探讨了药物的未来，环球健康隐忧和人类寿命等问题。
A panel of gerontologists and scientists discussed the future of medicine, global health concerns and life expectancy.
用牙线清洁牙齿。 老年医学家迈克尔罗伊森博士称每天用牙线清洁牙齿能多活6年。
Floss your teeth The gerontologist Dr Michael Roizen claims that flossing your teeth every day can add six years to your life.
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