Three-part science series presented by paediatrician Dr Guddi Singh. The series brings together over 200 babies and scientists from around the world to take part in one of the most ambitious scientific studies about babies ever attempted. With cutting-edge experiments, the show explores how the incredible changes that happen in the first two years of life make us who we are. Episode one investigates the latest research into what makes us individuals. It begins with an experiment that looks at temperament. Scientists think that personality is shaped by our basic temperament, how we react to situations. In the lab, Dr Emily Jones finds out if it is possible to spot a baby's temperament at just six months old. She identifies three basic temperaments: calm, excitable and cautious. This episode also explores babies' early language development, the effect of technology on the development of fine motor skills, the formation of personal preferences and biases, and babies self-control.

Originally released by BBC Worldwide Learning, 2018. Streaming video file encoded with permission for digital streaming by Infobase on November 21, 2019.