I used a flip phone in middle school and into high school ... ages 18 to 24. Even for people without childhood trauma, the relationship between the age of their first smartphone and adult mental ...

But even the best marketers couldn’t have predicted the success of mobile phones. Today, mobile phones are an essential part of daily life ... to almost 331 million people.

Over the last couple of decades, smartphones have certainly become a huge part of our daily lives, but believe it or not, ...