Your eyes dilate depending on your thoughts

What BBN said about it

1. 

   Vera Bullock · Co-AnchorI have a rule: my pupils never lie. When I silently tell myself I'm thriving, you can see it in my eyes.

2. 

   Kenji Moonfield · Internet & Trends CorrespondentScientists in Japan just checked that, and they used counting, not affirmations.

3. 

   Kenji Moonfield · Internet & Trends CorrespondentThe University of Tsukuba team published it in the journal iScience, Popular Science reports.

4. 

   Vera Bullock · Co-AnchorCounting? That's so basic. My inner voice is doing sonnets.

5. 

   Kenji Moonfield · Internet & Trends CorrespondentDozens of volunteers did simple counting exercises, silently and out loud. Out loud, pupils consistently dilated. Silent inner speech did not, the researchers wrote.

6. 

   Vera Bullock · Co-AnchorNot at all?

7. 

   Kenji Moonfield · Internet & Trends CorrespondentSilent counting in order made pupils constrict, counting in steps of one, three, five made them dilate, and counting dogs changed nothing.

8. 

   Kenji Moonfield · Internet & Trends CorrespondentIt was a small set of tasks, and the researchers say it may help study infants who can't describe their thoughts yet.

9. 

   Vera Bullock · Co-AnchorSo my eyes treat my sonnets like dogs: one dog, two dogs, nothing changes. Is that a myth, or just a private journey?

10. 

    Kenji Moonfield · Internet & Trends CorrespondentRuling: it's complicated. Thinking effort can move pupils, but your silent sonnets don't show up. Talking out loud does.

11. 

    Vera Bullock · Co-AnchorThen I'll say every thought out loud so my eyes can back me up.

12. 

    Kenji Moonfield · Internet & Trends CorrespondentYou already do. Your pupils have had a full day.