It is believed that many parents tell their children that children who lie are not good children. It is really bad to lie.

Moreover,the people who often lie have a kind of vague consciousness and don`t know what they are talking about. But science proves that lying is a commom response to bad situations,and it is good for them to lie. of course,the impvement of IQ doesnot advocate lying,but lies are not all malicious.Lies also have good intentions.