High-stress levels can lead to weight gain due to increased production of cortisol, a hormone that promotes fat accumulation, particularly around the abdomen. Stress can also trigger emotional eating and cravings for high-calorie, unhealthy foods as a coping mechanism. Additionally, chronic stress might reduce motivation for physical activity, leading to a sedentary lifestyle. Managing stress through effective strategies like exercise, relaxation techniques, and social support is essential for maintaining a healthy weight.