In these days, it is difficult for us to gain silence and we sacrifice our health by living in noise. Maybe many people know that too much noise is bad for our ears or eardrum. In my neighborhood, I always hear engine sound of bike in middle night, and I feel sure that my ears had very bad impact. However, recent studies show us that noise affects our health in many ways, not only our ears.

The definition of “noise” is “unwanted noise”. Foe example, if you buy a ticket to go rock band concert, you may not think the sounds noisy because they like the rock band and pay much money to this concert. But, people who live near the concert hall feel that it is only noise. Stress built up before we know. If you live noisy area, you may not sleep better every day than people who live in rural area where is silent.

When I was child, I read the picture book about noise. In the story, One mysterious person say to people “Stop moving, and hearing natural sounds!!”. All people can hear bird’s chirping and the sound of flowing river. I think all people living in urban don’t know natural sounds, and I want to hear that too.