A study suggests that men, the gender dominating Wall Street, may be screwing up Wall Street because they think with their…testosterone. According to the Daily Mail:

The way male testosterone leads to risk-taking behaviour means stock market dealing would be more successful if there were more women on the trading floors, a Cambridge scientist claims today.
Research by neuroscientist Dr John Coates, a former Wall Street trader, has revealed that testosterone and cortisol – associated with high stress levels – can cloud the judgment of the men paid to make big-money deals.

Dr Coates said the traders he tested in the City of London were caught in ‘feedback where levels of the chemicals rose so high they affected their judgment.

Men are just are soooo emotional – you know how they can be when it’s that time of the market.