The sound of an infant's laughter will warm even the coldest of hearts. But there's no telling what a sleep-giggling baby will do to the unsuspecting curmudgeon, let alone your average baby-nibbling human. I imagine it's akin to a Lisa Frank Trapper Keeper coming to life (unicorns, rainbows, puppies, oh my!).
But — fun fact — it's totally normal for newborns to laugh in their sleep. A 2004 study found that infants as young as 17 days were having the giggles during nap time. The real mystery, however, is what a 17-day-old baby could possibly find funny given its limited understanding of the world. Science, your move.
THE WEEK'S AUDIOPHILE PODCASTS: LISTEN SMARTER
- 31 TV shows to watch in 2014
- Attack of the invasive species
- Why atheism doesn't have the upper hand over religion
- He said he was leaving. She ignored him.
- 14 wonderful words with no English equivalent
- Why Easter is so important to Christians
- Why would a young person today be religious?
- What would a U.S.-Russia war look like?
- The world's dumbest idea: Taxing solar energy
- Which states get screwed worst by the Electoral College?
Subscribe to the Week