"The Anxious Generation", the NYT and WSJ best seller. The authors is NYU professor and psychologist Jonathan Haidt, who based on the data collected over 10 years. He is concluding that the rise of smartphones and overprotective parenting has led to a "rewiring" of childhood and increased mental illness.
https://jonathanhaidt.com/anxious-generation/
https://www.amazon.com/Anxious-Generation-Rewiring-Childhood-Epidemic/dp/0593655036
