Or a high facial width to height ratio. Mayweather, Canelo, Pacquiao, Marquez etc... and the chinny overrated boxers like David Price and Amir Khan have narrow weak looking faces...
There's actually been a lot of studies on this. Basically men with wider faces relative to the length of their faces have higher testosterone on average and are more aggressive and competitive.
A really telling study that I read was that men with broader faces are less likely to die in contact violence.... This makes me think about the potential relation this has to a fighters chin and heart..
http://www.ehbonline.org/article/S10...019-0/abstract
A few examples:
Tough resilliant fighters:


Compared to:

There's actually been a lot of studies on this. Basically men with wider faces relative to the length of their faces have higher testosterone on average and are more aggressive and competitive.
A really telling study that I read was that men with broader faces are less likely to die in contact violence.... This makes me think about the potential relation this has to a fighters chin and heart..
http://www.ehbonline.org/article/S10...019-0/abstract
A few examples:
Tough resilliant fighters:


Compared to:


:****you:
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