The economist. science & technology. Feb 20th 2020 ed

A there is a similarity between the results of the study and Aristotle's opinion. B scowling may mean various things when it comes to showing emotions. C Dr Barret was the head of the psychology department in which the study was carried on. D in 70% of the time they are angry, people do manage to smile. E the researchers concentrated their work on the relations between scowling and anger.