According to a new study from Stanford University, Tween girls who spend much of their time multitasking, such as switching frantically between YouTube, Facebook, television and text messaging, are more likely to develop social problems. 　　Through surveying 3,461 American girls aged 8 to 12, researchers found that young girls who spend the most time multitasking between various digital devices, communicating online or watching video, are likely to develop social problems. Researchers suggested that children need to spend plenty of time interacting with people to learn about emotion and social skills. 　　Researchers also indicated the importance of face-to-face interaction, and suggested that social skills are typically learned when children are engaged and making eye contact, rather than fiddling with an iPod during a conversation. 　　In addition, multitasking affects both children and adults. It is found that adults who are heavy multitaskers experience cognitive problems, such as having difficulty focusing and remembering things and are poor at juggling various activities at work.