August 3, 2010 9:00 am Study Finds Heavy Internet Use Can Trigger Depression Like pep rallies and pimples, the internet has become a fixture in the world of teenagers, but experts say when the net is the only social scene a teen has it’s a sign of a serious problem. US & World Videos 1:41 ‘The Mummy' turns 25: Remembering the Brendan Fraser classic 3:27 Dua Lipa claps back at viral ‘give us nothing' meme during ‘SNL' hosting debut 3:27 Here's one of the luxurious suites your favorite A-list celebs are getting ready in for the Met Gala 1:15 Anna Nicole Smith's look-alike daughter Dannielynn Birkhead attends 2024 Kentucky Derby 0:53 Police in New Jersey wrangle runaway “ham-some” pig