Recent studies at Yale have shown that being an asshole is detrimental to one's health. Professor Sweetlove, a Psychology professor, came on record as saying:
"Assholes and local desert rats tend to live shorter lives and have less consensual sexual relations than non assholes. It could be due to lower testoserone levels or a chemical imbalance in the brain but some people are just wired to be.... well.... assholes"
Full story can be found here. AP