Why today's children are less rebellious, more tolerant, less happy, and completely unprepared for adult life (and what that means for the rest of us)

They were born after 1995. They grew up with mobile phones, created an Instagram page before they even went to school, and can't imagine the world without the Internet.

They are the iGen, the generation of the Internet.

In her highly-discussed book, Dr. Jean Twenge paints a revealing portrait of a generation that is maturing later and with more anxiety - but is more tolerant and secure - than any other generation in history.

By analyzing data from decades of research, Dr. Twenge identifies the unique perspectives of the Internet generation on religion, sexuality, and politics, and observes unprecedented levels of anxiety and loneliness.

As this new generation of people grows up, there is an urgent need for parents, educators, and employers to understand it. After all, the generation of the Internet will inevitably shape the future of the world.

Based on Jean Twenge's research on the Internet generation, Apple shareholders wrote an open letter urging the company to study the impact of smartphone use on children's development.