Pulse is no different, taking a novel, early 2000s horror concept ghosts invading the world of the living through the internet  and using it to investigate how the modern world has alienated people from one another, and the psychological and societal consequences of such.

The pulse rate is a measurement of the heart rate, or the number of times the heart beats per minute. As the heart pushes blood through the arteries, the arteries expand and contract with the flow of the blood. Taking a pulse not only measures the heart rate, but also can indicate the following: Heart rhythm.