The video shows a man lying on his back on a treadmill. He is wearing a blue shirt and appears to be in a gym or fitness center. The man is holding his chest with both hands and appears to be experiencing discomfort or pain. His facial expression suggests that he is in distress. The treadmill is not moving, and there are no other people visible in the video. The lighting is bright, and the walls are white. There is no visible title, subtitle, or informative text in the video.