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Introduction: Water is an essential nutrient since it intervenes in the major metabolic functions of the human body, being necessary to the proper functioning of our brain. A decrease in water intake is associated with states of confusion, irritability, lethargy and cognitive function loss. Brain’s dehydration hurts (lower level of neurotransmitters) nerve transmission and decreases blood circulation in brain what may affect to mental performance. People with a proper hydration have better scores on intelligence tests.
Objetive: The main objective of this study is to know the relationship between water intake/hydration of a group of University students and their cognitive function.
Method: This information was collected from personal data (age, sex, and tobacco use), anthropometric measurements (weight, height, BMI -body mass index-), fluid intake, physical activity, and a measurement of intelligence test to fifty students (WAIS test with a total of thirty-six variables for each of the subjects).
Results: It was observed a statistically significant relationship between water consumption of youths and their visual acuity/memory, as well as better scores in the intellectual quotient.
Conclusions: A higher level of hydration can cause a beneficial effect on the information systems of memory and visual acuity, contributing to the improvement of the intellectual quotient.
