Do most online dating profiles seem too good to be true? There's a reason for that. Research shows at least 81 percent of online daters have lied in their profile.

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Profile picture is old. Catalina L. Toma, an assistant professor at the University of Wisconsin-Madison, told the New York Times that women’s profile photographs were on average a year and a half old. Men’s were six months old.

Courtesy: Match.com wesbite

Connections to celebrities. BeautifulPeople.com found a small percentage of men and women lied about having ties to celebrities.

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Hobbies and interests. Daters run the risk of sounding boring if they have only a couple hobbies, so many "interests" are exaggerated.

Courtesy: chemistry.com website

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Employment. Forty-two percent of men surveyed by BeautifulPeople.com lied about their job and 37 percent of women did. Common lies are about job title, how interesting their job is and how important they are at their work.

Money. A study of user profiles by dating site OKCupid finds people on average exaggerate their income by 20 percent.

Age. Nearly one-third of men lied about their age in a study by BeautifulPeople.com, compared to 17 percent of women.

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Physique. The options on dating sites such as "slender" and "about average" leave room for interpretation, and research shows people tend to stretch the truth in this area.

Courtesy: eharmony.com website