Now we know! Why men are never wrong

Testosterone makes it difficult for men to men lto realise when they're wrong, according to new research.

Californian scientists tested the hypothesis that higher levels of testosterone increase the tendency in men to rely on their intuitive judgments.

This is because the hormone reduces cognitive reflection — a decision-making process by which a person stops to consider whether their gut reaction to something makes sense.

The researchers found that men given testosterone performed worse on a cognitive reflection test than those given a placebo.

"The testosterone group was quicker to make snap judgments on brain teasers where your initial guess is usually wrong," says co-author and neuroscientist Professor Colin Camerer from the California Institute of Technology.

"The testosterone is either inhibiting the process of mentally checking your work or increasing the