Smartphones, those digital portals of constant information, have become so integrated into most Americans’ lives, they’re like extra—yet essential—appendages. Some 72 percent of Americans own a smartphone, compared to the global median of 43 percent. But studies have shown that overuse can have a negative impact on your posture, eyesight, and hearing, not to mention distract drivers and pedestrians. More recently, researchers who study the relationship of mobile phone use and mental health have also found that excessive or “maladaptive” use of our phones may be leading to greater incidences of depression and anxiety in users.