Social Media: Streaming Video

Children as young as three are becoming addicted to mobile phones, harming their development and causing possible long-term damage. We follow some of the youngest cases and hear how our brains are affected by exposure to screens.

Social media has transformed the world in the 21st century. By connecting people across the planet, proponents argue, platforms such as Facebook and Twitter have helped lead a digital revolution, providing tools that foster global friendships, and break down long-standing barriers that kept people and ideas separated.

This is the inside story of how mobile telephony was developed and how such a small device could change the world so radically.

Partygoers discuss using Snapchat, Tinder, and Instagram to find sexual partners in Austin, Texas.