Advierten sobre peligros del viral “desafío de la caja de leche” en Estados Unidos

A trend that began as a dare on social media has turned into a public health concern across the United States. The "milk crate challenge" — a simple but dangerous stunt in which people attempt to climb and descend a wobbly pyramid of plastic milk crates — exploded across Twitter, Instagram, and TikTok in the summer of 2021, spawning hundreds of videos that almost uniformly ended the same way: with someone tumbling hard to the ground.

The stunt's appeal lay partly in its absurdity and partly in the predictable chaos of watching it fail. Videos poured in from across the country, each one capturing the moment when the stack of crates shifted, when balance gave way, when the person filming shouted in alarm. The hashtag #milkcratechallenge became ubiquitous, a shorthand for a particular kind of viral foolishness that seemed harmless enough until medical professionals began to speak up about what they were actually seeing in emergency rooms.

Doctors at the University of Kansas health system issued a direct warning about the injuries the challenge could produce. Chad Cannon, a physician there, laid out the risks with clinical precision: head trauma, broken necks that could leave someone paralyzed, fractured wrists. These were not theoretical dangers — they were injuries that required hospitalization, that altered lives. The Baltimore health department, watching the trend spread while their hospitals were still managing a surge of COVID-19 patients, posted a darkly humorous message on Twitter suggesting people check bed availability before attempting the challenge. The irony was sharp: here was a preventable injury trend gaining traction at a moment when hospital capacity was already strained.

TikTok, the platform where much of the challenge's momentum had built, moved to contain it. The company removed the hashtag from searchable content, displaying a message to users that the phrase was associated with material that violated its safety policies. The move was a recognition that the platform had become a vector for something genuinely risky, and that the company bore some responsibility for what spread there. Yet the videos did not disappear entirely — they migrated to Twitter and Instagram, where hundreds continued to circulate, each one a record of someone's miscalculation.

The challenge became fodder for commentary beyond the medical community. George Takei, the actor known for Star Trek, used the moment to make a pointed observation about American attitudes toward risk and public health. He noted the contradiction between people willing to attempt a stunt that could hospitalize them while refusing vaccination against a disease that had killed hundreds of thousands. It was a sharp observation about priorities and the strange logic of viral culture: people would take physical risks for attention but resist medical interventions for collective safety.

The vaccination rate at the time told its own story. Roughly half of the American population had been vaccinated against COVID-19, despite the fact that vaccines were widely available and free. The contrast between the energy devoted to the milk crate challenge and the resistance to vaccination suggested something about how information, fear, and social pressure moved through American society in that moment. Some users on social media responded to the trend with memes, including one that superimposed milk crates onto the border wall between the United States and Mexico, joking that the challenge had somehow spread south of the border as well.

What remained clear was that the challenge persisted because it was, at its core, exactly what one doctor called it: something stupid that people were doing because it looked stupid. The appeal was in the spectacle of failure, in the shared understanding that this was ridiculous and therefore worth attempting. But that appeal came with a cost that emergency rooms were beginning to tally.