Men with long ring fingers are more likely to drive too fast, overtake on dangerous roads and park illegally, according to a report in the Daily Mail.
The Daily Mail says a new study suggests bad driving may be programmed from birth because finger length is directly associated with exposure to the hormone testosterone in the womb.
Research suggests it is linked with increased male aggression and risk-taking. But it also means men are better at sports such as athletics and football, more likely to succeed in the cut-throat world of high finance and may even be more fertile than those with shorter ring fingers.
Click here to read the full Daily Mail news report.