But recently a small number of users have voiced concerns that the drugs elicit unexpected cognitive side effects, such as memory loss, fuzzy thinking and learning difficulties.

但是最近一小部分使用者已经开始担心药物会引起突发认知副作用，例如：记忆丧失、思考模糊和学习困难。

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Aside from the initial concerns I have regarding the influence these agents would have and the types of promises they could elicit from players about being paid back in the future, I have another bigger concern.

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