On the left, the composite “sick” face, and on the right, the composite healthy one. (Audrey Henderson/St Andrews University)The next time a friend tells you that you look sick, hear the person out. A sick face and healthy face from the same individual never appeared consecutively. Still, they reliably judged the 13 others as sick, Axelsson said. “A sick person will likely become withdrawn from conversation and would hunch up.”Looking for signs of illness on someone's face might seem like a scientific curiosity.

Source: Washington Post January 03, 2018 00:00 UTC