It is very likely that even people in the Stone Age clenched their fists to defend their cave, family, supplies and fire that were vital to their survival. Paintings on 2,000-to-3,000-year-old ...

Priya Mistry asks people if they clench their jaws, they usually say no—yet ... you likely squeeze your fists together or notice your entire body has tightened, says Dr. Karin Grinbaum, an ...

Donald Trump after his inaugural address as the 47th President of the United States raised a clenched fist yet again. It is a gesture Trump has deployed on many occasions – most memorably in the ...