Owning a smartphone before age 13 is associated with poorer mental health and well-being in early adulthood, according to a global study of more than 100,000 young people.
"Our analysis reveals that receiving a smartphone before age 13 is associated with poorer mind health outcomes in young adulthood, particularly among females, including suicidal thoughts, detachment from reality, poorer emotional regulation, and diminished self-worth. These correlations are mediated through several factors, including social media access, cyberbullying, disrupted sleep, and poor family relationships. "
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