Researchers at SMU have found that facial shape influences whether women view a man as a potential short or long term partner. The scientists were expanding on previous studies that have found men with wide faces have higher testosterone and are wealthier, powerful and more aggressive. But the Singapore researchers, led by Katherine A. Valentine and Norman P. Li, wanted to prove if this was true by putting it to the test in a dating environment. They believed the evidence showed that men with wider faces are attractive for one night stands and flings - but were not marriage material. To put their theory to the test, the scientists analysed 77 men and 81 women during seven speed-dating events. The men were aged 20-32 and the women 18-30, all were single and looking for love. The results confirmed that men with wider faces were deemed to be more dominant and aggressive. When speed dating, these men were the ones that women would consider for a short-term relationship but not a long-term future.