Turns out some habits really do die hard. Adults may have stopped sucking their thumbs long ago, but some body language suggests that many still carry a similar habit.

Think about the last time you were in shock or stressed. Did you bury your face in your hands? 
Body language experts actually have a name for that reaction. It’s called “the pacifier gesture.” And it’s been in the news a lot lately…

For example: Secretary of State Hillary Clinton did it while watching a video of Navy Seals executing Osama bin Laden… And every time the stock market drops, newspapers run photos of stock brokers covering their faces. In fact, there’s an entire blog devoted to that called, what else: The Brokers With Hands On Their Faces Blog.