Lifestyle habits significantly contribute to heart disease risk through factors such as diet, exercise level, smoking, and stress management. A poor diet rich in saturated fats and sugars can elevate cholesterol levels, while physical inactivity leads to obesity—both of which are key contributors to heart disease. Moreover, smoking and chronic stress can damage blood vessels and increase blood pressure. By adopting healthier habits, such as regular exercise, a balanced diet, and stress reduction techniques, individuals can mitigate these risks and promote cardiovascular health.