8. Eye Strain
One of the obvious benefits of cell phones is they are essentially small computers that you can take virtually anywhere. They can be used to surf the web, read a book and take advantage of an almost endless selection of apps. The problem is that the screens are quite small, and that can cause eye strain. As a result, cell phone users can experience headaches, blurred vision, and excessive dryness. To avoid eye strain, use the largest font you can comfortably use, take breaks when reading a lot, and keep your phone about 16 inches away when reading.