Answer:
Because courage is actually not an absence of fear; it is the awareness that there's something worth taking risk for. Courage allows us to put our energy, feelings, emotions and visions to work so that we can reach beyond where we Imagine and transcend our own limits.
Slang and abbreviatians are rarely used in formal business writing.
Although you did not present the article to which this question refers, we can say that it allows the author of the article to present the male gender as the most affected in relation to the interaction of adolescents with media similar to online and electronic games. In this case, this information promotes statistical evidence, which helps the author to reformulate the argument about how genres are affected by the media in different ways in relation to the content they provide.