A City Guide To Guigang for Passive smoking also carries risks to unborn babies. IN THE SPOTLIGHT Smoking, drinking and teenage pregnancy Studies of adolescent girls have pointed to the importance of self-concept i.e. concept of what one is’ and self-esteem i.e. concept of one’s value’ or worth’ in determining involvement or non-involvement in risk behaviours. Some theorists further suggest that a significant amount of adolescent behaviour is motivated by the need to present oneself to others primarily peers in a way that enhances the individual’s reputation, their social identity Emler . A City Guide To Guigang 2016.