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Last Updated: Oct 23, 2019
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Health Tip
Our brain is made of 75% water. It seems therefore logical that dehydration may have an impact on cognitive functions and mood.
- Several studies, performed in healthy persons, looked at the effects of induced dehydration on cognitive performance and motor function: fatigue, mood, choice reaction time, short- and long-term memory, attention, arithmetics…
- It appears that a 2% dehydration is sufficient to impair functions and performances.Some studies have suggested that adverse effects may even be present at 1% dehydration.
- Young children and adolescents, in particular, may be at risk of impaired cognitive function (concentration, alertness and short-term memory) due to insufficient hydration