Scientists Unravel Secrets of Online Dating Profiles
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WATCH: A new study offers data-driven dating tips.

Just in time for Valentine's day, scientists have unraveled the secrets to creating the perfect online dating profile.

Khalid Khan, lead author of the new study, and his co-author Sameer Chaudhry pored through more than 86 studies to determine what makes a profile successful. The idea for the study, published this week in the journal Evidence-Based Medicine, came after Chaudry told Khan he wasn't having success finding love online.

"He was asking me to improve his profile to figure out something to do differently. I had never done online dating myself," said Khan, a professor of Women's Health and Clinical Epidemiology at the Queen May University of London School of Medicine and Dentistry.

"I said look let's search the literature," Khan told ABC News.

Here's what they found: