Sweaty Palms

There has been a lot of research on the benefits of trusting intuition.

In a study conducted in 1997, researchers asked subjects to play a card game in which the goal was to win the most money. The subjects chose cards from two piles, one of which was rigged to provide big wins followed by big losses, while the other deck provided small wins but almost no losses.

On average it took about 80 cards before the subjects could identify which deck was which. However, after about 50 cards they claimed that they “had a hunch about which deck was safer” and after only 10 cards the sweat glands on the subjects’ palms would open every time that they reached for the big wins/losses deck.