互联网自我完善社群中流行起一股"减少洗澡以释放信息素来吸引异性"的趋势1。然而科学分析表明，这一做法缺乏可靠的生物学基础。人类实际上不具备产生和感知信息素所需的解剖学结构1。
虽然动物能够产生和感知信息素——信息素是指由物种成员体内产生、分泌或排泄、能可靠地在同物种其他成员中产生反应的化学信使1——但人类从出生起就缺少功能性的犁鼻器官和相关脑结构1。人类身上没有任何化学物质满足信息素的标准定义1。
关于人类体味与吸引力的科学研究同样存在问题。1995年的一项著名研究发现女性倾向于主要组织相容性复合体（MHC）基因不同的男性，但服用避孕药的女性偏好相反1。然而2020年的一项荟萃分析对这些结果提出了质疑，发现在人类中测试的所有MHC-气味效应研究均未发现总体效应1。此外，新鲜汗液的主要成分为99%的水、电解质和微量尿素与氨等化合物1，这些物质均未被证实具有吸引异性的特殊功效。
A trend has emerged online promoting the idea that reducing bathing frequency can release pheromones to attract romantic partners 1. However, scientific evidence suggests this strategy lacks a biological foundation.
Pheromones are chemical messengers produced, secreted, or excreted by members of a species that reliably trigger responses in other members of the same species 1. While animals demonstrate clear pheromone systems—such as bombykol, a sex attractant released by female silkworm moths and first identified in 1959 1—humans lack the necessary anatomical structures to produce and perceive pheromones in the same way. Specifically, humans are born without nerve cells connecting the vomeronasal organ to the brain, and lack an accessory olfactory bulb to process such signals 1. Consequently, no chemical substance in the human body meets the criteria to be classified as a pheromone 1.
The appeal of "pheromone maxxing" may partly stem from a widely cited 1995 study examining the relationship between body odor and major histocompatibility complex (MHC) genes, which found that women preferred the scents of men with genetically different MHC profiles 1. However, this research has faced significant scrutiny. The study also showed that women taking birth control pills displayed the opposite preference 1, and a 2020 meta-analysis examining all MHC-odor effect studies conducted on humans found no overall effect 1. Fresh sweat itself consists primarily of water, electrolytes, and trace amounts of urea, ammonia, and other compounds 1—hardly the stuff of attraction in the absence of pheromone signaling.
评论
还没有评论，欢迎留下第一条。