At present, almost everyone has a mobile phone, but have you ever thought that cell phones            be bad for your health? A study shows that heavy mobile phone use may cause hearing loss.
This study shows that people who use cell phones for about an hour a day have a              time hearing some similar sounds, especially in their right ears. It is getting harder for           to tell the difference between the sounds of “s” and “f”, and “t” and “z”.
Researchers studied 100 people who used cell phones and                them with 50 people who did not. The study lasted for 12 months. What the researchers found was that cell phone users had more hearing            than those who did not use cell phones.
Besides this, our ears have many little            inside them. Too much noise will cause these hairs to get weak and              die. When these hairs die, it affects our ability to listen.
However, cell phone users don’t care too much             this study. One man said, “I’d be more worried about people who                MP3 players. They put those earphones in their ears and listen to very              music. I think that is more likely to cause hearing loss than a cell phone.”

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