负离子被称为“长寿素”，是空气中的自然清洁白器或空气中的维他命。
Negative ion is called "longevity element", which is a natural cleaner of the air and vitamin in the air.
人们在长寿文化中发现一件很有意思的事，虽然他们有着不同的饮食和生活方式，但他们的一个共同点就是他们都有着很低的胰岛素水平。
It's interesting to note that in cultures known for their longevity, many had different diets and lifestyles but the one thing they all had in common was low fasting insulin levels.
现在，很多人在日常饮食之外还要补充大量的维生素E，希望能获得健康和长寿的生活，然而，最近美国科学家却发现，在很多情况下补充维生素E的害处可能远远超过它的好处。
Vitamin E supplements, which millions take in the hope of longer, healthier lives, may do more harm than good, researchers reported on Wednesday.
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