Popular Facebookers have different brains

There's a direct link between the number of Facebook friends a person has and the size of particular brain regions, say researchers at University College London (UCL).

Right-wingers have larger fear center in the brain

People with conservative views have a larger amygdala, a primitive part of the brain associated with fear, new research shows.

This woman feels no fear

Researchers at the University of Iowa have confirmed that a female patient with a damaged amygdala is utterly incapable of feeling fear.