Chronic stress contributes to weight gain through the release of the hormone cortisol, which can increase appetite and cravings for high-calorie foods. Stress often leads to emotional eating or decreased motivation for exercise, further compounding weight management issues. Additionally, prolonged stress can alter metabolism, making it more difficult for the body to efficiently use stored fat and glucose. This cycle often creates a challenging environment for maintaining a healthy weight, as both psychological and physiological factors hinder individuals' ability to manage their weight effectively.