爲什麼你只對特定人羣具有吸引力?

Proximity plays a role in who you're attracted to.
親近度對人際吸引力起到作用。

Have you ever noticed that it's not uncommon to see co-stars from your favorite series or movie dating in real life? Rachel McAdams and Ryan Gosling, for instance, dated on and off for three years off screen after starring together in "The Notebook." Or maybe you remember that Jennifer Garner and Ben Affleck started dating the year after the release of "Daredevil" back in 2003. Why does this seem to be a pattern?
你是否注意到這一現象：你最愛的電視劇或電影中的聯合主演在現實生活中約會的情況並不少見。比如，《戀戀筆記本》的主演雷切爾·麥克亞當斯和萊恩·高斯林在演完電影后，分分合合談了三年之久。也許你還記得2013年《超膽俠》發佈的後一年，詹妮弗·加納和本·阿弗萊克就開始約會了吧。爲什麼會存在這一種模式？

"Mere exposure to someone repeatedly increases the likelihood we will be attracted to them," J. Celeste Walley-Jean, dean of the School of Graduate Studies and associate professor of psychology at Clayton State University, told INSIDER.
"經常與某人頻繁接觸會增加我們對他們的吸引力，"克萊頓州立大學研究生院院長兼心理學副教授J. Celeste Walley-Jean對INSIDER雜誌說道。

This is backed up by 50 years worth of scientific research that has found that proximity is one of the most powerful indicators of attraction. We simply are drawn to the people we see frequently, which explains why celebrity co-stars end up getting together due to how closely they work with one another on a regular basis.
一項時間跨度50年的科學研究也支持這一說法，研究發現：親近度是影響吸引力的最主要因素之一。我們就是會被經常碰面的人吸引，這也解釋了影視節目中聯合主演最終會在一起的原因--經常性的緊密合作。

People can be attracted to those who look healthy.
看上去健康的人頗具吸引力。

Whether we realize it or not, we are biologically attracted to people who look healthy.
無論我們是否意識到這一點，從生物學角度而言，我們都會被看上去健康的人士吸引。

"Heterosexual men are typically attracted to younger women who appear to be of childbearing age and physical appearance," Walley-Jean told INSIDER. This can explain why women in the 1800s wearing bustles to overemphasize their healthy, childbearing hips in order to attract men.
"異性戀男性通常會被看上去適孕、健康的年輕女性吸引，"Walley-Jean對INSIDER雜誌說道。這也解釋了爲什麼19世紀的女性會穿着裙撐來強調她們健康可生育的臀部，以此吸引男性。

Additionly, research suggests that people are also attracted to those who look healthy. Face symmetry, face structure, and hip-shoulder ratios are all important when it comes to attraction because these physical features indicate good health, according to Live Science.
此外，研究表明看上去健康的人頗具吸引力。據《生活科學》雜誌報道，面部對稱性、面部結構和臀-肩比例都是影響吸引力的重要因素，因爲從這些身體特徵可以得知一個人健康與否。

Our environment teaches us who we should view as attractive.
環境告訴我們哪些人具有吸引力。

Beyond physical features, Walley-Jean said our families, peers, and media all play a role in helping us learn what to view as attractive. For instance, some heterosexual people may seek out partners who share attributes that remind them of their opposite-sex parent.
除了身體特徵，Walley-Jean表示，我們的家人、同齡人和媒體都在幫助我們，讓我們知道哪些人具有吸引力。例如，有些異性戀者在尋找另一半時可能會找具備父親或母親身上某些品質的伴侶。