Sara Konrath's single mom struggled to raise her large working-class family until an older woman in the community named Ruth befriended them, helping out in every way she could until she became a surrogate grandmother.
"Her amazing care and empathy has stayed with me all my life," Konrath tells us.
Konrath has a lifelong fascination with empathy - what makes people like Ruth care so selflessly for others? It's a fascination to which we can relate. Today Konrath, who was raised in Canada, is a researcher at the University of Michigan where she puts empathy under the scientific microscope.