Growing up, 'geeking out'

Mizuko "Mimi" Ito spends a lot of time "geeking out" at her computer. She plays video games, trolls the Internet, chats, and visits social media sites such as Facebook and Twitter for hours on end.

Going for broke

(PhysOrg.com) -- Natasha Schull recalls how in the late 1990s she began observing people in Las Vegas transfixed for hours at video poker and slot machines. What, she wondered, kept them glued to machines until they lost ...

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