How cell phone data can help redesign cities

With the rise of Big Data, methods used to study the movement of stars or atoms can now reveal the movement of people. This could have important implications for cities.

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  • A treasure trove of mobility data from devices like smartphones has allowed the field of "city science" to blossom.
  • I recently was part of team that compared mobility patterns in Brazilian and American cities.
  • We found that, in many cities, low-income and high-income residents rarely travel to the same geographic locations. Such segregation has major implications for urban design.
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Why family group texts cause anxiety, and how to escape them

If texting 'is starting to feel frustrating, stressful, or if you're overwhelmed or trapped by it, that's a good indication that you need to set a boundary.'

I am not known for being especially easy to get hold of via text. I tend to keep my phone on silent as the high-pitched ping of an incoming message makes my cheeks flush with dread. I wish I could mute all my contacts' notifications – sorry, mom, dad, and everyone I care about, but communicating with you makes me incredibly anxious.

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Why We Need More Sleep

Forty percent of Americans sleep less than seven hours per night, and that's a problem.

A seven-year-old cat sleeps besides its owner near Sao Conrado beach in Rio de Janeiro, Brazil on October 9, 2011. (Photo: Yasayoshi Chiba/AFP/Getty Images)

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