What's the harm of texting while listening to songs with headphones on? Also, what will happen if a person lacks a kidney?

The earphone is the closest place to the ear canal, which will have a great influence on the ear. Listen to music with headphones for no more than an hour. Texting will generate a magnetic field, which is the same reason that you will beep when you are close to the TV. In the long run, hearing loss may even lead to otitis media. The kidneys don't know.