Phones are dangerous because they are technological tools. Phones destroy brain cells and they are very dangerous. Sometimes you have a headache and you don’t know the reason but it is because of mobile phones.
When you talk to somebody on phone your brain cells are hurt also when you text too much, you have pain on your shoulder and neck. Another danger of mobiles is radiation. Phones release radiation that causes so many health issues. These are some of the dangers of mobiles. So I highly recommend you not to play or watch on your mobile phone too much.