The evidence for this comes from many different sources, including studies of atomic bomb survivors in Japan, people exposed during the Chernobyl nuclear accident, people treated with high doses of radiation for cancer and other conditions, and people exposed to high levels of radiation at work, such as uranium miners.
Most studies on radiation and cancer risk have looked at people exposed to high doses of radiation in the settings above.
Fully 84% of boys play video games, significantly higher than the 59% of girls who play games.
Playing video games is not necessarily a solitary activity; teens frequently play video games with others.
With so much game-playing with other people, video gameplay, particularly over online networks, is an important activity through which boys form and maintain friendships with others: Much more than for girls, boys use video games as a way to spend time and engage in day-to-day interactions with their peers and friends.