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Dehydration Linked to Increased Stress Hormones, Study Finds

9/30/2025

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Summary

Story summary

Liverpool John Moores University researchers find dehydration linked to higher cortisol spikes during stress, implying hydration may help manage stress.
The study involved 62 adults grouped by hydration; low intake was under 1.5 liters daily.
During the Trier Social Stress Test, dehydrated participants had cortisol spikes up to 50% higher; however, causation remains unclear due to the observational design.

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Story summary

Liverpool John Moores University researchers find dehydration linked to higher cortisol spikes during stress, implying hydration may help manage stress.
The study involved 62 adults grouped by hydration; low intake was under 1.5 liters daily.
During the Trier Social Stress Test, dehydrated participants had cortisol spikes up to 50% higher; however, causation remains unclear due to the observational design.