How does the writer use words and punctuation to create tension and even the rhythm of a heartbeat in the story 'The Tell-Tale Heart'?

The writer uses short, choppy sentences and repetitive phrases to build tension and mimic the rhythm of a heartbeat. Punctuation, such as dashes and exclamation points, adds to the feeling of suspense and urgency in the text. By emphasizing certain Words and using pauses effectively, the writer keeps the reader on edge, mirroring the erratic heartbeat of the narrator.