A study from the World Health Organization has found that 80 percent of adolescents across the world are not moving enough. In this case, moving was defined as conducting at least one hour of physical activity per day with 85 percent of girls and 78 percent of boys failing to achieve that target.

Researchers said that the situation is serious and that urgent action needs to be taken to get young people moving again. 1.6 million students from 146 countries participated in the study and it found that inactivity was highest in South Korea at 94.2 percent. In the United States, things were slightly better but still a dismal 70 percent.