This document discusses the negative effects that smartphones can have on people's lives and health. It suggests that people are becoming overly dependent on their smartphones and that this constant phone use is turning people into "zombies." Some of the negative impacts mentioned include social isolation, lack of attention to the real world, the spread of germs, potential links to cancer and depression, distraction from tasks, and dangers of texting while driving. The document encourages people to try leaving their phone in a drawer for a week to experience the benefits of less phone use.