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BUECHELOH, GERMANY - APRIL 19: A 5 week old baby is yawning on April 19, in Buecheloh, Germany. (Photo by Thomas Trutschel/Photothek via Getty Images)

BUECHELOH, GERMANY - APRIL 19: A 5 week old baby is yawning on April 19, in Buecheloh, Germany. (Photo by Thomas Trutschel/Photothek via Getty Images)