其中一种以RU-21为名出售，它还有一个绰号叫“克格勃”。 因为据说它是为了帮助苏联间谍在饮酒时保持清醒而发明的。
One, sold as RU-21, is also known by the nickname “KGB”, because it was supposedly developed to help Russian spies keep a clear head while drinking.
重要的几点包括：有限饮酒、充分锻炼和保持健康体重，同时，良好的婚姻、教育以及“成熟的处世技能”，如坚忍和无私等也很重要。
Limiting alcohol, getting enough exercise and maintaining a healthy weight are important, but so is a good marriage, education and "mature coping skills" such as stoicism and altruism.
至今仍不清楚为什么饮酒能预防痴呆病，也许酒具有保持大脑血液正常流动的特性。
It's not clear why drinking guards against dementia, though it may be alcohol's capacity to maintain healthy blood flow to the brain.
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