LOS ANGELES - A new survey from the Centers for Disease Control and Prevention (CDC) has found that around 50% of American teens, ages 12 to 17, spend at least four hours daily in front of screens -- whether on their smartphones, computers, or televisions. The data comes from responses to a federal survey conducted from mid-2021 to late 2023.

As screen time rises among adolescents, researchers are finding a connection between extended screen use and mental health concerns. The CDC study found that nearly 27% of teens who reported four or more hours of daily screen time also reported experiencing anxiety in the past two weeks. In comparison, only 12.3% of teens with less screen exposure experienced similar symptoms.

Self-reported depression rates were also significantly higher among teens with elevated screen time. About 26% of teens who spent four or more hours a day on screens reported symptoms of depression, compared to 9.5% of those with less screen time.

Screen time usage appeared similar across genders, with roughly 48% of boys and 52.5% of girls spending four or more hours on screens daily. Age played a more noticeable role: 45.6% of younger teens (ages 12-14) engaged in prolonged screen time, compared to 55% of older teens (ages 15-17).

Teens in urban areas also showed higher screen time, with 51.4% of urban teens spending four-plus hours daily on screens, compared to 43.3% of rural teens.

Amanda Ng, the report's lead author from the CDC's National Center for Health Statistics, noted that prior research has connected excessive screen time with negative health outcomes, including poor sleep, fatigue, and elevated symptoms of anxiety and depression.