Measures of Good Hydration Are Associated to Lower Cognitive Performance

To determine if variance in hydration status would be associated with cognitive performance, as assessed by NeuroTracker.

121 participants performed 15 NeuroTracker sessions across 10 days of visits to the laboratory. On the days of training, recent fluid intake, urine color (Urine color scale, UC), and body water (BIA) were documented.

Individuals with average urine color indicating good hydration performed significantly worse on NeuroTracker than those with a borderline dehydrated indicator, as based on urine color. Participants with no recent beverage consumption performed significantly better than those who had recently consumed water, tea, coffee , and milk. The researchers suggested that optimal hydration may not occur at the highest values of the urine color scale possibly due to moderate hyponatremia and hemodilution that could impact NeuroTracker performance.

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