Obesity increases the risk of heart disease in several ways. According to the document, over 65% of the US population is considered obese based on measures like BMI, waist circumference, and risk factors. Carrying excess weight, especially around the abdomen, causes inflammation that damages blood vessels over time and stresses the heart. Studies also show obesity alone can raise the risk of a fatal heart attack because obese individuals often have enlarged hearts that may not function as well during a heart attack. The document recommends losing weight gradually through realistic goals and lifestyle changes like healthy eating and exercise to lower heart disease risks long-term.