The video features a 3D animation of a human heart and its surrounding blood vessels. The heart is depicted in a realistic manner, with a focus on its anatomical structure. The animation is set against a white background, which allows for clear visibility of the heart and vessels. The heart is colored in shades of red and pink, while the blood vessels are shown in blue. The animation is smooth, with the heart beating rhythmically, indicating the function of the heart in pumping blood. The video also includes text overlays that provide information about heart attacks and related problems.