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These studies suggest that dehydration impairs cognitive performance, mood, and physical coordination, particularly when water loss exceeds 2% of body mass.
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Dehydration, the condition of having insufficient water in the body, is often linked to various physiological and cognitive impairments. This synthesis aims to explore the impact of dehydration on cognitive performance, drawing insights from multiple research studies.
General Cognitive Impairment:
Mood and Perception:
Specific Cognitive Domains:
Population-Specific Effects:
Rehydration Benefits:
Dehydration, even at mild levels, can significantly impair cognitive performance, particularly in tasks requiring attention, psychomotor skills, and short-term memory. It also negatively affects mood and increases the perceived difficulty of tasks. Vulnerable populations such as children and older adults are especially at risk. Rehydration can mitigate some of these adverse effects, highlighting the importance of maintaining adequate hydration for optimal cognitive function.
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