I am an eight-year-old girl. I always like to bite my pen, chew paper, or put the eraser on my pen in my mouth. Will it affect me?

It is a bad habit to like to bite a pen with your mouth, but it is not normal to like to chew paper. As a father, I can tell you responsibly that this is an obvious lack of trace elements. Tell parents to check their trace elements immediately. Remember, long-term lack of trace elements such as calcium, magnesium, zinc and iron will affect growth and development.