Who knew things so small and light could cause so much pain? Tablet and smartphone use is being blamed for back pain. The majority of people 18 to 24 say they’ve had upper back pain in the last year. They’re calling it “iPosture,” it’s the slouching, hunched position you automatically put yourself in when you text, Facebook or play Candy Crush for hours on end… There’s your excuse if a cop pulls you over and suspects you of texting while driving because he saw you hunched over. It’s wasn’t because you were texting while driving, it’s because of all your texting.