By far, one of the most frustrating parts of dating someone is finding out if they are into you or not. Do they even know if you like them? Some say yes, they do...but subconsciously.
As with the articles posted in May, the means of pheromone transportation is human sweat. More specifically, sweat produced by men while sexually aroused. Twenty men were asked to stop wearing cologne and deodorant for a few days and wear fresh T-shirts. Sweat was collected from their arm pits as they watched porn. Later, the same men gave sweat samples when they were not sexually aroused.
Nineteen lucky women were asked to smell the T-shirts. A brain scan was performed on the women as they smelled the shirts, to see how their brains reacted to the different sweat. And react differently they did. The sexual sweat activated the women's right orbitofrontal cortex and right fusiform cortex, areas of the brain connected to recognizing emotions and perceiving things. Both areas are involved in emotion and smell recognition.
The study adds credence to the idea that humans communicate subconsciously via chemical pheromones.
Source:
http://www.livescience.com/health/090109-sexual-sweat.html
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