Obesity is a serious issue in Malaysia, with approximately 43% of adults and 38% of children being obese as of 2006. Rates of obesity in Malaysia have been increasing by about 14% each year. Obesity is defined as a BMI over 30 and is associated with various health risks like heart disease, diabetes, and early death. Factors contributing to obesity include diet, lack of exercise, genetics, medication, and emotional issues. Treatment involves diet modification, increased physical activity, medication like Orlistat, and sometimes surgery for severe cases. Prevention through healthy lifestyle habits is emphasized.