Meet the most scientifically studied people in the world. A group of 1,037 New Zealanders born in one city have been followed since their births in 1972. Members are now dispersed around the globe but 96% of the original group are still taking part - an extraordinary achievement in such a long running study.
This SBS documentary examines myths and facts surrounding long-term effects of childhood. It shows some of what happens in early life has no lasting influence, but also points at how important the early years can be in a number of areas that really do count. The series then moves on to the troubled teens. Why do some go bad and other come right?