Stress negatively impacts metabolism by triggering hormonal changes, such as increased cortisol levels. High cortisol can lead to increased appetite, fat storage, and disrupted insulin sensitivity. This hormonal imbalance can hinder weight loss efforts and contribute to weight gain, particularly in the abdominal area. Chronic stress may also lead to unhealthy eating habits and decreased motivation for physical activity, further affecting overall metabolic function. Managing stress through techniques like mindfulness, exercise, or relaxation can help mitigate its adverse effects on health.