Several outlets report on a new study examining why marathon runners can suddenly slow down or hit the “wall” even when they initially feel strong. The coverage says researchers found male runners are about twice as likely as female runners to experience this dramatic drop in performance during a marathon. The articles describe the “wall” as a well-known phenomenon in endurance running, where pacing and energy levels change abruptly late in the race.
The reports also cite researchers’ hypotheses about possible contributors. One explanation highlighted in the coverage is psychological: scientists suggest differences in motivation or behavior—described as “egos” in the articles—may lead some men to start too fast relative to their endurance, increasing the likelihood of running out of energy later. The sources present the findings and potential reasoning without indicating a single confirmed cause.
Overall, the articles focus on the study’s comparison between male and female runners and the idea that both physical and behavioral factors may influence when and why the “wall” occurs.