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.
You can't help it; sometimes, you just get a bad feeling about someone that's hard to shake. So, what's happening in your brain when you make that critical (and often lasting) first judgment? Peter Mende-Siedlecki shares the social psychology of first impressions -- and why they may indicate that, deep down, people are basically good.