Teething — it’s happened to all of us and none of us remember it, but everyone knows it makes babies cry.

While the actual process is much longer and arguably more painful, it only takes an unusual time-lapse video 20 seconds to show just why that’s the case.

(H/t Mental Floss)

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Jo'wan Bellamy taught in the GNETS program for 17 years and recently transferred to Atlanta’s new behavioral program at Crawford Long Middle School. (Arvin Temkar/AJC)

Credit: arvin.temkar@ajc.com