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Risk Factors and Causes

Many factors can contribute to obesity and overweight, such as, lifestyle choices (e.g., lack of exercise), medical conditions (e.g., hypothyroidism), and genetics (i.e., heredity). When a person takes in more calories than he or she uses, overweight and obesity result. These excess calories are stored in the body as fat, and unless weight-control strategies are put into place, more and more weight is gained.

People tend to gain weight when they eat high-calorie ...Read the full article