3 ms·These nerds have never thrown a punch if they think bicep size is responsible for fighting ability.by mgarfias 13y agoThese nerds have never thrown a punch if they think bicep size is responsible for fighting ability.deleted 13y ago[deleted]endtime 13y agoCINC. Willingness to fight and larger muscles are both a consequence of higher testosterone.shard 13y agoWhat does CINC stand for?mhartl 13y agoMy guess is "Correlation Is Not Causation".