For youth sport people generally believe that sports help children develop self-confidence, discipline, teamwork skills, resiliency, moral thinking, and other individual strengths. Sometimes, the darker side of youth sports is apparent: young athletes might develop aggressive behavior and the need to dominate their opponents on and off the field.<br />Research has been conducted with hundreds of thousands of children who participate in sports. Generally, these studies show that children who participate in sports during middle and high school do better academically and are offered greater job prospects than children who do not participate in sports.<br />Keywords: developmental, psychology,sport<br />Prof Dr.Mazin Hadi kzar<br />Al-Mustaqbal University College<br /><br />[email protected]