changes in adolescence Adolescence is the transition period between childhood and adulthood. It includes some big changes, both in the body and in the way a young person relates to the world. Physical changes Puberty marks the beginning of very notable biological changes such as sexual maturity or fertility. These changes are determined by the activation and production of various hormones, and the development of the sexual organs. During this stage, children often begin to grow faster. Including hair growth in the armpits and genital area, breast development in females, and enlarged testicles in males. * In this change, a young person's self-concept can be profoundly affected by the physical changes they experience, for example, poor nutrition is a very important factor that can lead adolescents to suffer from eating disorders such as obesity, bulimia or anorexia, which influence directly on your self-esteem. cognitive changes ...