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How Much Sleep Do New Parents Lose?

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An often-cited statistic claims a new baby typically robs parents of anywhere between 400-750 hours of sleep in the first year alone.

Related Question: Over to you, moms and dads—how much sleep did you miss out on in your child's first year?

[A reliable primary source was hard to pin down, which is why I'm curious to see how your experience matches up. See previous Numbers of the Day here. ]

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This Puzzling Math Brain Teaser Has a Simple Solution
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Fans of number-based brainteasers might find themselves pleasantly stumped by the following question, posed by TED-Ed’s Alex Gendler: Which sequence of integers comes next?

1, 11, 21, 1211, 111221, ?

Mathematicians may recognize this pattern as a specific type of number sequence—called a “look-and-say sequence"—that yields a distinct pattern. As for those who aren't number enthusiasts, they should try reading the numbers they see aloud (so that 1 becomes "one one," 11 is "two ones," 21 is "one two, one one,” and so on) to figure the answer.

Still can’t crack the code? Learn the surprisingly simple secret to solving the sequence by watching the video below.

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What Number Is The Answer?
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