Researchers from Bielefeld have identified specific moments during football matches that significantly increase stress levels for fans, potentially leading to heart attacks. Their study, conducted during the DFB-Pokal final in London, pinpointed critical junctures in the game that elicit the strongest physiological responses. While the article does not detail the exact findings of the study or the specific moments identified as most stressful, it highlights the well-documented phenomenon of cardiac events occurring during intense sporting events and suggests that this research offers new insights into the triggers for such stress in football spectators.