HEAR DIFFERENT OPINIONS ON THE HARDEST SUBSTANCE IN THE HUMAN BODY

Have you ever wondered what the hardest substance in the human body is?

The answer is: TOOTH ENAMEL 

Tooth enamel is the hardest substance in the body.

This resilient surface is 96 percent mineral, the highest percentage of any tissue in your body – making it durable and damage-resistant.

Now watch the video below where people on the streets are asked what the hardest substance in the human body is.