Final answer:
Heart disease is a type of cardiovascular disease (CVD) that involves the heart and blood vessels. It is the leading cause of death worldwide and can manifest in various conditions. Risk factors include age, gender, genetics, smoking, obesity, diabetes, high blood cholesterol, and lack of exercise.
Step-by-step explanation:
Heart disease is a type of cardiovascular disease (CVD), which involves the heart and blood vessels. It is the leading cause of death worldwide and can manifest as conditions such as coronary artery disease, stroke, and heart failure, among others.
Risk factors for heart disease include age, gender, genetics, smoking, obesity, diabetes, high blood cholesterol, and lack of exercise.