When it comes to better sex, all five senses and your brain can play a big role -- but there is something even more important -- your heart, according to a recent survey from Durex and YourTango. The survey of more than 1,000 people from May 20 to June 17, 2013 shatters common misconceptions that sex is all physical and that no-strings-attached sex is more gratifying.

A whopping 96 percent of survey respondents said the best sex is had with someone with whom they are emotionally connected. Similarly, 92 percent of readers say it's a turn-on when their partner shows some vulnerability, an important part of emotional closeness.

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