Brain for Business Blog
People with a busy social life ‘have bigger amygdala’

The researchers studied the amygdala, which is involved in inter-personal functions such as interpreting emotional facial expressions, reacting to visual threats and trusting strangers. Inter-species comparisons in non-human primates have previously shown that amygdala volume is associated with troop size, suggesting that the brain region supports skills necessary for a complex social life.

"This link between amygdala size and social network size and complexity was observed for both older and younger individuals and for both men and women, This link was specific to the amygdala, because social network size and complexity were not associated with the size of other brain structures."

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