A recent study has claimed that to get an idea about a man’s temperament, study his face closely.

The study says that if a man has a rounder face, he might be more aggressive too.

The reason, which the international team has put forward is that if male sex hormones, testosterone are produced in abundance, the face gets rounder too, thus the behavior of men which depends upon testosterone gets more aggressive.

The researchers reported, “The shape of the face may have been honed by evolution as a marker of the propensity for aggressive behavior though our ancestors did not pick up this warning sign.”

The lead researcher of the study, Cheryl McCormick informed, “Our findings suggest that people can make accurate inferences about others' personality traits and behavioral dispositions based on certain signals conveyed by the face.”

The Daily Telegraph reported on Wednesday that McCormick of Brock University and colleagues reached to this conclusion after they had analyzed the levels of aggression of 90 sportsmen.

The facial ratio was linked in a statistically significant way for professional hockey players with the number of penalty minutes per game. The men behaved violently when they faced a penalty and did acts such as, slashing, elbowing, and fighting.

However, same cannot be said for women, as there is no connection between there facial shape and aggression.

McCormick said, “The facial structure of a man provides an indication of how aggressive he will be in a competitive situation. So, we are able to predict, with some accuracy, the behavior of men on the basis of their facial features.”