Facebook and email trump sex in terms of sheer irresistibility, researchers say. The German study used smartphone-based surveys to probe the daily desires of 205 men and women, most of whom were college age.

For one week the phones, provided by the researchers, buzzed seven times daily, alerting study subjects to take a quick survey on the type, strength and timing of their desires, as well as their ability to resist them.

The study found that while the desire for sex was stronger, the study subjects were more likely to cave into the desire to use media, including email and social networking platforms like Facebook and Twitter.

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