He continued: “Although the low-fluid group did not report being thirstier than the high-fluid group, they had darker, more concentrated urine, clear signs of poor hydration. An important observation was that poor hydration was associated with increased cortisol reactivity to the stress test. Exaggerated cortisol reactivity to stress has been associated with poor long-term health.”
The study explains that dehydration triggers the release of vasopressin, a hormone that helps the body retain water but also activates the brain’s stress response center, increasing the production of cortisol. The sustained release of vasopressin can strain the kidneys and increase stress responses.
Researchers conclude that staying hydrated could help the body manage stress more effectively. “Being hydrated can help the body manage stress more effectively,” Dr. Kashi said. He advised that a simple way to check hydration is by checking the color of your urine; The light yellow color usually indicates good hydration.
