a clock with an ecg line on it

Prompt 1: a yellow and black waveform on a black background, followed by a yellow and black heartbeat waveform. the heartbeat waveform is then shown on a black background with a yellow line. ends with a black screen with yellow words.

Prompt 2: displays a yellow heartbeat on a screen with the words "ecg (electrocardiogram)" written on it. the heartbeat changes from a smaller size to a larger one, and the background gradually changes from yellow to orange.