Hydration status and water intake are critical to physiological health. Despite a popular narrative that dehydration impairs cognitive performance, results are mixed in the literature. Therefore, we tested how hydration status was associated with cognitive performance in an ad libitum state over the course of 3 months.

中文翻译：

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随意脱水与持续注意力任务的较差表现相关，但与社区居住的中老年人认知表现的其他指标无关：一项短期纵向研究

水合状态和水摄入量对于生理健康至关重要。尽管人们普遍认为脱水会损害认知能力，但文献中的结果却褒贬不一。因此，我们在 3 个月的时间内测试了水合状态与随意状态下的认知表现之间的关系。