Weight gain can stem from various factors that affect the body’s metabolism and hormone regulation. Stress, for instance, triggers increased cortisol production, which can lead to fat accumulation, particularly around the belly. Hormonal imbalances, such as those seen in conditions like Polycystic Ovary Syndrome (PCOS), can interfere with insulin sensitivity and disrupt metabolism, contributing to weight gain. Lack of adequate sleep can also impact hunger hormones, increasing cravings for unhealthy foods and promoting weight gain. Additionally, thyroid dysfunction can lead to a slower metabolism, while age-related changes further contribute to weight retention. Poor dietary habits, such as overeating or consuming high-calorie foods, can also play a significant role. Identifying these causes allows individuals to address the root issues and take steps to manage their weight effectively.