https://www.cbc.ca/news/canada/kitchener-waterloo/wilfrid-laurier-tattoo-anne-wilson-bradley-ruffle-1.4534983
"Have a tattoo? Odds are you're more impulsive and short-sighted, says study"
Participants were asked a series of questions related to receiving money now, or later. If they took the money immediately, they would get $1; delay the payment by three weeks and get up to $2.50.
The people were asked several times if they would like to reconsider the delayed payment, with the amount gradually increasing to $2.50.
"Ruffle and Wilson found a distinct pattern — people without tattoos switched to the delayed payment option much earlier than people with visible tattoos. People with easily hidden tattoos were in the middle," said the release.
Participants were also asked a series of questions to test impulsivity in other parts of their lives: retirement savings, how they share personal information on social media and smoking.