India, Aug. 22 -- Researchers from John Moore's University in Liverpool discovered that those who drank less water had a stronger stress response in their bodies. Specifically, they showed higher levels of cortisol, a stress hormone, when put in stressful situations.

Study lead Professor Neil Walsh from Liverpool John Moores University explained, "Cortisol is the body's primary stress hormone and exaggerated cortisol reactivity to stress is associated with an increased risk of heart disease, diabetes and depression."

To explore the link between water consumption and stress level, the study involved 32 volunteers. Half were limited to 1.5 liters of water a day, while the other half drank the recommended amount - 2.5 liters for men and just...