Good morning, everyone. Today we're going to discuss the impact of social media on teenagers' mental health. A recent study conducted by the University of Melbourne followed 500 adolescents over a period of two years. The results showed that teenagers who spent more than three hours per day on social media were 30% more likely to report symptoms of anxiety and depression compared to those who used it less. Interestingly, the type of activity mattered: passive scrolling, such as browsing others' posts, had a stronger negative effect than active engagement, like chatting with friends. The researchers suggest that limiting passive use to under one hour daily could significantly reduce risks.
❓ According to the lecture, which group of teenagers showed a higher risk of mental health issues?
A. Those who actively chatted with friends on social media
B. Those who spent more than three hours daily on social media
C. Those who used social media for less than one hour
D. Those who mainly posted their own content
✅ 正确答案
Those who spent more than three hours daily on social media