New research suggests that video games are not only fun but can actually enhance certain mental and physical abilities.

Researchers gathered in Boston for the American Psychological
Association convention are detailing a series of studies suggesting
video games can be powerful learning tools. The benefits range from
increasing younger students' problem-solving potential to improving
the suturing skills of laparoscopic surgeons.

One study even found that "World of Warcraft," the world's
biggest multiplayer online game, appears to sharpen scientific
thinking skills.

But the news isn't all good. Other studies confirm earlier
research that found students who play violent games tend to be more
hostile. And those who play more entertainment games do poorer in
school and have a greater risk of obesity.