There's no physical danger specific to researching trends and prepping presentations, but the lack of downtime paired with such high expectations can start to take a real toll on the body over time. Lack of sleep, too much caffeine, and what's almost certainly a severe lack of quality homemade food are going to start showing up as wrinkles, heartburn, and a distinct lack of energy before too long.
And let's not forget the paper cuts. Sure, they don't rank highly on the lethality scale, but they're definitely up there on the oogies scale. Ick.