A good poker face may help you win a Hold ‘Em tournament, but it won’t do your memory any favors. Our faces naturally flinch into emotional expressions that match what we’re seeing or hearing. These quick expressions, in addition to giving away our pocket aces, seem to help us recall things later. Using stiff cosmetic masks, scientists showed that it also works the other way: if we can’t move our faces, emotional memories are harder to hang onto.
We may not realize when our facial muscles