The reasons for the link between watching TV and eating junk food aren’t surprising: young people watching TV are exposed to more advertising for unhealthy foods such as fast food or sodas than commercials for fresh fruits and vegetables. Studies show that kids who watch a lot of TV are more likely to prefer eating foods high in sugar, salt and fat, even when they aren’t watching TV. Plus, when children spend more time in front of the screen, they are also less likely to be exercising or engaging in healthy physical activity.