Heartbeat effects have long been used in film, television and games to put the audience inside a character's body during stressful moments, and this accelerating version became a staple of online editing. Short-form creators use it as a universal shorthand for rising anxiety, fear or excitement without needing dialogue or explanation. Because it is instantly recognizable and only a few seconds long, it fits memes, suspense parodies, medical scenes and reaction videos, and it remains popular for building anticipation before a punchline, failure or scare.