It’s a response to a variety of situations that transcends cultures, says Alex Borgella, a doctoral student in social psychology.
The Tufts Now video series Ever Wonder features faculty and other experts answering questions about which we all have wondered—everything from why leaves change color to why we have wisdom teeth.
You can view the entire series at http://everwonder.tufts.edu, and submit your own questions there, too.
Steffan Hacker can be reached at steffan.hacker@tufts.edu.