自2008年以来，在科学会议上至少展示了五项人体试验，表明白藜芦醇有益人体，包括改善心脏血液流动、更好地控制糖尿病等。

Since 2008, at least five human studies have been presented at scientific meetings showing human benefits, ranging from improved blood flow to the heart to better control of diabetes.

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五分钟后，研究人员对调查对象的唾液进行取样分析，测量其中皮质醇的含量。

After five minutes the researchers took mouth swabsand salivasamples from the male subjects and then measured their cortisollevels.

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和大部分六碳糖分子不同，木糖醇是以五碳为骨架的。

Unlike most sugar molecules which are based on a six-carbon structure, Xylitol is based on five carbon atoms.

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