Eating a heart-healthy diet like the DASH diet which is low in fat, cholesterol, and salt while being rich in fruits, vegetables, whole grains, and low-fat dairy can help protect your heart. Maintaining a healthy weight and exercising regularly also reduces the risk of heart disease, while smoking or tobacco use significantly increases risk by damaging the heart and blood vessels. It is important to get regular health screenings to check for conditions like high blood pressure and cholesterol that can negatively impact heart health if left unmanaged.