Looking at your loved one's old photos may help you determine your risk of ending up divorced, suggest researchers who that found people who smile in pictures are more likely to stay married.
Matthew Hertenstein, a psychologist at DePauw University in Indiana, and colleagues evaluated the smiles in the school yearbook photos of 225 women and 124 men, ages 21 to 81, who were asked to provide details about their personal life, United Press International reported.
The researchers also examined youthful photos of people age 65 and older, who were asked if they'd ever been in a committed relationship or divorced.
The results showed that 11 percent of those with the biggest smiles in their photos were divorced, compared with 31 percent of people who frowned in photographs, UPI reported.
The study, published in the journal Motivation and Emotion, demonstrates that extremely small behavior clues can reveal how people will fare in marriage, Hertenstein said.