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Sex goes visual
Pheromones, like other scents, hitch a ride through the air on other particles, such as water droplets. They generally hover just 10 inches off the ground, however. So odds are slim they'll waft up to a human nose and fuel sudden passion at a nightclub.
Watch any construction worker whistling at a passing woman from half a block away, and you can see how visual cues can be more powerful.
视觉吸引
信息素就和其他味道一样，需要通过通过空气中的其他微粒进行传播，比如水蒸气。不过它们只在距地面10英寸左右的地方存在。所以但夜总会里，这些气味能够进入鼻子里、并马上点着激情的机会并不大。
相反的，如果你见过建筑工人们在女人从老远走过来就大吹口哨的话，你就明白视觉的信息是多么强大。
