The quote “That was longer than a heartbeat” from Alex Garland's book "28 Days Later" captures the intense suspense and emotional weight of a critical moment. It implies an experience that stretches time, creating a sense of dread and anticipation. When a heartbeat often signifies life or a moment of pause, the phrase suggests a prolonged feeling of anxiety or tension that extends beyond the normal rhythm of life.

This concept reflects the broader themes in "28 Days Later," where characters are often faced with life-threatening situations. The novel effectively illustrates how moments of fear can distort perception of time, making everyday experiences feel both surreal and extended. This creates a chilling atmosphere that resonates with readers, as the clash between the normal pace of life and abrupt danger unfolds.