Smartphones provide advantages of constant internet connectivity and access to applications, but can also be distracting and addictive. While smartphones allow for increased productivity through mobile work access, research also shows they lower productivity as people spend more time on unrelated activities online or on their phones. Studies find smartphone addiction can be treated similarly to drug addiction, and that divided attention between phones and tasks results in missed targets at work and lower pass rates in school. Overall, smartphones were meant to enhance technology but poor self-control in their use makes them problematic in settings where concentration is needed like work or education.