Bichler A, Swenson A, Harris M A
Biology Core Curriculum, University of Wisconsin, Madison, WI, USA.
Amino Acids. 2006 Nov;31(4):471-6. doi: 10.1007/s00726-005-0302-x. Epub 2006 May 15.
Red Bull energy drink has become extraordinarily popular amongst college students for use as a study aid. We investigated the combined effects of Red Bull's two active ingredients, caffeine and taurine, on short term memory. Studies on the effects of these two neuromodulators on memory have yielded mixed results, and their combined actions have not yet been investigated. In this double-blind study, college student subjects consumed either caffeine and taurine pills or a placebo and then completed a memory assessment. Heart rate and blood pressure were monitored throughout the testing period. The combination of caffeine and taurine had no effect on short term memory, but did cause a significant decline in heart rate and an increase in mean arterial blood pressure. The heart rate decline may have been caused by pressure-induced bradycardia that was triggered by caffeine ingestion and perhaps enhanced by the actions of taurine.
红牛能量饮料作为一种学习辅助工具在大学生中变得异常受欢迎。我们研究了红牛的两种活性成分咖啡因和牛磺酸对短期记忆的综合影响。关于这两种神经调节剂对记忆影响的研究结果不一，且它们的联合作用尚未得到研究。在这项双盲研究中，大学生受试者服用了咖啡因和牛磺酸药丸或安慰剂，然后完成了一项记忆评估。在整个测试期间监测心率和血压。咖啡因和牛磺酸的组合对短期记忆没有影响，但确实导致心率显著下降和平均动脉血压升高。心率下降可能是由咖啡因摄入引发的压力性心动过缓引起的，也许牛磺酸的作用会使其加剧。
