Brain imaging and memory tests were given to each subject before and after the study. Dr. Small says that the subjects who had the high-level flavanol drink showed much improvement on memory tests._______________________Dr. Joann Manson is the lead researcher of a four-year study involving 18,000 adults. This study will use flavanol capsules. 研究前后都会对测试者进行脑成像和记忆力测试.斯马尔博士说喝黄烷醇含量高的饮料的人在记忆力测试中,记忆力有所提升.约翰`曼森博士是这项研究的主管研究员,这项研究历时四年,包括1万8千个成人.研究会使用黄烷醇胶囊.