Yes, psychological factors like stress and anxiety can increase thirst or fluid intake. The body's "fight or flight" response triggered by stress can lead to increased heart rate and breathing, resulting in higher water loss through respiration and sweating. Anxiety can also cause dry mouth and a sensation of thirst. Some individuals may cope with stress by consuming more fluids. However, others might experience decreased appetite and reduced fluid intake. Balancing psychological well-being is important, as managing stress and anxiety positively impacts overall health, including hydration levels.