Here's how long it takes a Lego head to pass through your body

Discovering that your kid has swallowed Lego is pretty annoying as a parent, but these researchers did the same thing in the name of science.
The study, published in the Journal of Paediatrics and Child Health, had six paediatric professionals from a group called Don't Forget The Bubbles swallow a Lego head to see how long it would take for it to pass through their body. 
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Prior to swallowing the heads,