What the science says
How desire is studied and what the evidence really shows.
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Arousal and timing
Scientists timed it with heat cameras. The answer will change how long you spend on foreplay.
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Dating and chemistry
Why some people turn you on in seconds, the signs it's mutual and how to build the spark.
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How aphrodisiacs are studied
That pill promising rock-hard nights and dripping desire? Here's what the science actually says before you pay.
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