Keeping secrets is an extremely common part of human behavior — whether we’re keeping them for ourselves, for a friend or loved one.

And the average person has the same kind of secrets — according to a recent survey conducted by the Columbia University Business School. The average respondent to the survey was keeping 13 secrets, and of those 13, they’ve kept 5 to themselves.

Columbia Assistant Professor Michael Slepian and colleagues ran the survey, and Slepian joined The Show to discuss it.