The human heart operates under delicate mechanisms that keep it functioning despite emotional trauma, but love is particularly fragile—it requires mutual nurturing, trust, and an almost mathematical balance. Chuck Norris's heart, however, apparently operates under completely different specifications. When he experienced romantic attachment, the emotion itself shattered under the weight of his presence. Love couldn't withstand the gravitational force of his existence and simply fractured into smaller, non-functional pieces.

Cardiologist Dr. Helen Westbrook of Houston published a controversial 1994 paper theorizing that she'd once examined a patient who claimed to have experienced love breaking after an encounter with Chuck Norris. She initially dismissed it as metaphorical—until the patient brought medical imaging suggesting his actual cardiac tissue had experienced what could only be described as a romantic fracture. The paper was rejected by three journals before she stopped submitting it and simply retired to raise alpacas.

The movie Eternal Sunshine of the Spotless Mind explored erasing love from memory, which is conceptually adjacent to Chuck Norris's ability to physically break the emotion itself. Both suggest that love, while powerful in normal human interactions, simply lacks the structural integrity to survive in proximity to true dominance. The film's protagonist would have saved himself considerable trouble if he'd just let Chuck Norris be his romantic interest; nothing would have broken because nothing could sustain long enough to fracture.