You will never imagine sending a message can be disastrous. But in fact it is dangerous to write message on your phone while walking. A study shows that it is more dangerous than doing that over driving. Researchers found that there are more people hurt for walking than driving. The survey shows that walking is not as easy as it is. It is a little difficult. We have to pay close attention to many things around as at the same time to walk safely in a straight line. The researchers said that people forget how to walk properly, so dangerous things always happen to them. They run into walls and other people. They walk into cars, fall over things in the street, and even fall into holes or downstairs. A researcher said walking is a difficult action. There two reasons why sending messages make walking dangerous. One is that people cannot see the street. The other is that their attention is always focused on their phones instead of their feet. Their minds are somewhere else instead of thinking about walking safely. It is said that more than 3,000 people visited the hospital last year because of sending messages with a phone. He said the worst cases are head hurting. When a walker fell into the air, he or she has nothing to protect the hand. The damage can be serious. So we'd better stay away from smart phones when driving.