1. A private person has hacked several satellites and sends out illegal signals probably all over the world. The signals make people behave physical different than normal.
People use their hands more to touch their faces, cheeks, chins, mouths and their heads in general.
Read here for the full scoop. You got to read the replies as well, I literally fell off my bed reading it.
One: Hacked Satellites
Two: Hacked Satellites