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维他命补充剂停看听
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维他命补充剂停看听
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主题: 维他命补充剂停看听
维他命补充剂停看听
11 年 1 个月 前
#934
mike lee
离线
Intermediate English-2 /News Digest /Rethinking Vitamin Supplements
07-18
维他命补充剂停看听
抗氧化剂可能没有人们原来所认定的效果。维生素A、C、E等抗氧化剂一度被认为能够移除危害身体、引发癌症及心脏病的物质。然而,哥本哈根大学的科学家分析67份研究,并未从中找到足以证明抗氧化剂促进健康的证据。事实上,这些补充剂甚至可能制造摄取过量的问题,对健康有害而无益。当抗氧化剂是均衡饮食的一部分时,确有助于维持身体的健康,但抗氧化剂并非万灵丹。
新警告:海平面将大幅上升
在维也纳发表的新科学分析预测:到了本世纪末,海平面将上涨多达1.5公尺。这个数值比任何科学家先前所作的预测都高。藉由一套显示温度与海平面关系的计算机程序,科学家完成这项分析。过去两千年来,海平面的变化约为20公分左右,显示长久以来,海水高度都相当稳定。但根据该程序,到了2100年,海平面将上升0.8到1.5公尺。
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