Dragon Ball(Doragon Bru?)is a Japanese manga series written and illustrated by Akira Toriyama. It was originally serialized inWeekly Shnen Jumpfrom 1984 to 1995, with the 519 individual chapters published into 42tankbonvolumes by Shueisha.Dragon Ballwas inspired by the classical Chinese novelJourney to the West. The series follows the adventures of the protagonist Goku from his childhood through adulthood as he trains in martial arts and explores the world in search of the seven mystical orbs known as the Dragon Balls, which can summon a wish-granting dragon when gathered. Along his journey, Goku makes several friends and battles a wide variety of villains, many of whom also seek the Dragon Balls for their own desires. It contains themes of friendship, rivalry, personal loss and victory.

The 42tankbonhave been adapted into two anime series produced by Toei Animation:Dragon BallandDragon Ball Z, which together were broadcast in Japan from 1986 to 1996. Additionally, Toei has developed seventeen animated feature films and three television specials, as well as an anime sequel titledDragon Ball GT, which takes place after the events of the manga. From 2009 to 2011, Toei broadcast a revised, faster-paced version ofDragon Ball Zunder the titleDragon Ball Kai, in which most of the original version's footage not featured in the manga was removed. Several companies have developed various types of merchandising based on the series leading to a large media franchise that includes films, both animated and live-action, collectible trading card games, numerous action figures, along with several collections of soundtracks and a large number of video games.

It has been shown that action video game players have better hand-eye coordination and visuo-motor skills, such as their resistance to distraction, their sensitivity to information in the peripheral vision and their ability to count briefly presented objects, than nonplayers. Researchers found that such enhanced abilities could be acquired by training with action games, involving challenges that switch attention between different locations, but not with games requiring concentration on single objects. It has been suggested by a few studies that online/offline video gaming can be used as a therapeutic tool in the treatment of different mental health concerns.