The issue focused on the results of the study.

This story was published in the March 10, 2015 issue of The journal Science.

This story was provided by The Journal of Human Behavior.

This story was provided by The Journal of Human Behavior.

This story was provided by The Journal of Human Behavior.

This story was provided by The Journal of Human Behavior.

This story was provided by The Journal of Human Behavior.

This story was provided by The Journal of