"Turn it down!" If you are like I was as a kid, your mom probably tells you to turn down the TV or the radio or the video games sometimes. It's true: sounds can sometimes be too loud, and sounds that are WAY too loud can hurt you. Loud sounds can damage the inside of your ears and your sense of hearing won't be as strong.
This first video explains what happens when your ears are exposed to sounds that are too loud.
This second video gives some examples of sounds, how loud they are, and how loud they need to be to do damage to your ears and your hearing.