Ava Poole has been awake for nearly 24 hours. It's 4 a.m. and she's been working nonstop on a presentation about her startup.
Taylor Swift's "New Year's Day" plays. Four empty cans of Coke Zero litter her work space. Despite the sleep deprivation, the 20-year-old told USA TODAY "this is truly the happiest I've ever been." READ MORE