08/10/2025.- A recent study, titled “Habitual fluid intake and hydration status influence cortisol reactivity to acute psychosocial stress”, conducted by Liverpool John Moores University in collaboration with Danone Research has unveiled significant findings regarding the relationship between hydration and stress.
The study examined how habitual fluid intake and hydration levels influence the body’s response to acute stress. The researchers assessed the participants’ hydration levels and then exposed them to a standardised stress test to measure their cortisol reactivity. Cortisol, often referred to as the “stress hormone”, plays a crucial role in the body’s response to stress.
Individuals with lower habitual fluid intake exhibited a significantly higher cortisol response to stress.
These findings suggest that habitual low fluid intake and suboptimal hydration may contribute to an exaggerated stress response, which could influence long-term health outcomes. The study therefore highlights the importance of maintaining adequate hydration for effective stress management. Even mild dehydration can amplify the body’s stress response, highlighting the need for consistent fluid intake to support overall health and well-being.
For more detailed information, you can access the full study here: Habitual fluid intake and hydration status influence cortisol reactivity to acute psychosocial stress – PubMed