Despite more safety rules, kids around the world continue swallowing magnets , and the United States tops the list.

Magnet swallowing has posed a danger to kids in the U.S. for over a decade. Ingestions dropped in 2014 after the U.S. Consumer Product Safety Commission banned high-powered magnet sets. But when the ban was overturned in 2016, cases rose again, especially among kids under age 14, according to a new study published Tuesday in the medical journal BMJ Injury Prevention.

To better protect kids, the CPSC in 2022 set strict rules on the size and strength of loose magnets. The agency banned small magnets that can fit in a child's airway if they have a strong magnetic pull, which is measured with something called a flux index.

A flux index of 50 or higher means the magnet is p

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