Most adults always have smartphone close by, 1 in 10 use it during sex

Nearly three in four American smartphone users surveyed said they are within five feet of their devices the majority of the time, according to the 2013 Mobile Consumer Habits study conducted by Harris Interactive for Jumio, a mobile verification and payments company.

More than a third said they use their device at movie theaters and 12% said they even use it while in the shower. But perhaps most unusual is the fact that almost 1 in 10 users, or 9% of respondents, said they have even used their smartphone during sex. "So it should be no surprise that 12% believe their smartphone gets in the way of their relationships," the press release for the study said. The number of adults using their smartphones during sex rises to one in five when looking only at the 18 to 34 age group.