The usually-seriuos Funancial Times highlights a study that starts out like it could be a joke but isn't.
"Researchers at Cambridge university have found a strong statistical link between the profitability of male traders at a London bank and the ratio of index to ring fingers on their right hand. The longer the fourth digit in relation to the second, the more money the traders are likely to make.
This ratio, known as “2D:4D”, is affected by the amount of male hormone to which people are exposed while growing in their mother’s womb.
Traders with the lowest 2D:4D ratios had an average annual income of £680,000 – 11 times higher than those with the highest ratios. The ratios, measured from photocopies of volunteers’ hands, ranged from 0.90 to 1.02."
Stop looking at your hand.