Heroes have bigger amygdalae!
Sixty Minutes had an interesting story last night about researchers who used fMRI techniques to measure brain activity of people who responded "heroically" in crisis situations. Turns out they tend to have amygdalae larger than average humans! Here's the story: https://www.cbsnews.com/video/andrew-carnegie-hero-fund-commission-60-minutes-video-2023-01-22/?adobe_mc=TS%3D1674435322%7CMCMID%3D75455330816119198287527672950045914211%7CMCORGID%3D10D31225525FF5790A490D4D%40AdobeOrg .