Think he’s just not that into you? Turns out you can figure it out from his smell—more specifically, through the subconscious signals he’s sending out through chemicals in his sweat. The researchers found that a man’s scent is different when he’s sexually aroused than when he’s not—and women can tell the difference.
Psychologist Denise Chen at Rice University asked 20 heterosexual men to refrain from using deodorant and use scent-free shampoo and soap when showering. The men were then asked to watch videos showing “sexual intercourse between heterosexual couples” for 20 minutes. The researchers put pads in the subjects’ armpits to collect their sweat, and hooked the men up to electrodes to measure their sexual excitement. Then the men were asked to collect their sweat while they watched educational documentaries, so the female sniffers could compare.
The researchers then hooked 19 women up to brain scans and asked each of them to smell the pads and describe the sweat as floral, sweaty/human, other, and no smell. The women couldn’t distinguish between sexual sweat and “neutral” sweat, further suggesting that the response to sexual sweat is subconscious. But their brain scans showed something different:
As Live Science reports, “the sexual sweat, but not the normal sweat, activated the right orbitofrontal cortex and the right fusiform cortex, brain areas that help us recognize emotions and perceive things, respectively.”
So there you have it. And if you still don’t trust your nose for chemicals? Then try squirting the hormone oxytocin into your nose.
Related Content:
Discoblog: True Love Can Change How A Women Smells
Image: flickr/ KoAn La Scrivana
This post has been appended.



January 15th, 2009 at 8:02 pm
Well that explains a lot! No wonder being REALLY interested in a girl was such a turn-off when I was younger.
January 16th, 2009 at 3:06 am
[...] sure if you’re coming or going? Ask your lady friend, she’ll sniff out the [...]
January 16th, 2009 at 3:51 pm
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April 15th, 2009 at 3:06 pm
“The researchers …hooked the men up to electrodes to measure their sexual excitement.” I wonder how the researched hooked up the men. I mean…where did they hook up the electrodes? Mysterious
July 30th, 2009 at 2:56 pm
[...] Discoblog: The Nose Knows: Men’s Sweat Smells Like Cheese, Women’s Like Onions Discoblog: Attention Women: You Can Sniff Out a Man’s Sexual Intentions Discoblog: First Rule of Being a Successful STD: Make Sure the Host Still Has [...]
July 31st, 2009 at 6:01 pm
I thought pheromones were supposed to be subconscious…