McGonigal found the same conflicting information while researching her book SuperBetter, which included a meta-analysis of almost five hundred peer-reviewed studies on how game play affects real-life wellness (physical, emotional, social, professional, and academic). Half of them found that video games led to depression, social isolation, poor grades, and drug use, while the other half found the exact opposite, linking frequent video game play to greater happiness, stronger relationships, less drug use, better grades in school, and so on.
