编辑“戀胸”（章节）

== 科學的解釋 ==
科學家認為乳房帶來的性吸引力是其[[第二性徵]]的表現。例如[[動物學家]]及[[行为学家]][[德斯蒙德·莫利斯]]認為[[乳溝]]是一個模仿{{le|臀溝|Buttock cleavage}}的性訊號，依照莫利斯在《[[裸猿]]》一書所提到，臀溝是人類獨特的特徵，其他靈長類動物的臀部明顯平坦許多<ref>Desmond Morris. ''Manwatching. A Field Guide to Human Behavior.''. New York: Harry N. Abrams, Inc., 1977. ISBN 0-8109-1310-0.</ref>。[[演化心理學|演化心理學家]]認為人類女性持續隆起的乳房，不同於其他[[灵长目]]只在[[排卵]]時乳房才會漲大，因此讓人類女性「即使不是在受孕期，也可以吸引男性的注意力以及對她的投資。」<ref name=Crawford1998 >{{citation |last=Crawford |first=Charles |year=1998 | title=''Handbook of evolutionary psychology : ideas, issues, and applications'' |chapter=How Mate Choice Shaped Human Nature |last2=Krebs|first2=Dennis |publisher=Lawrence Erlbaum Associates |isbn=9780805816662}}</ref>。

有些學者認為戀胸是一種隨著社會而傳播的[[模因|文化基因]]，乳房從母性的機能演變成性的象徵<ref>Marsden, Paul. (1999). Journal of Artificial Societies and Social Simulation. [http://jasss.soc.surrey.ac.uk/2/2/review4.html ''Review of Thought Contagion: How Belief Spreads through Society''.] {{Wayback|url=http://jasss.soc.surrey.ac.uk/2/2/review4.html |date=20170726060600 }} Retrieved 2007-10-05.</ref>。在十九世紀的一些臨床文獻中，把乳房作為性焦點會視為是[[性倒錯]]，不過現代對這様的注意認為是正常的，是{{le|身体恋癖|partialism}}的一種，除非出現一些異常的行為才算是性倒錯<ref name="DSM-5">{{cite book|last=Association|first=American Psychiatric|title=Diagnostic and Statistical Manual of Mental Disorders American Psychiatric Association - 5th edition. |year=2013|publisher=American Psychiatric Publishing|location=Arlington|isbn=978-0890425558|edition=5th}}</ref><ref>{{cite web|url=https://books.google.it/books?id=YKyI76Ss9REC&pg=PA115&lpg=PA115&dq=perversion+female+breast+fetish+paraphilia&source=bl&ots=xBS1hZ-IM4&sig=kHv6eHbEn1wIxWXDCa3Xsmafkcs&hl|title=Breasts: The Women's Perspective on an American Obsession pychiatric preversion female breast fetish|author=Carolyn Latteier|date=1982|access-date=2018-05-09|archive-date=2019-05-20|archive-url=https://web.archive.org/web/20190520012727/https://books.google.it/books?id=YKyI76Ss9REC&pg=PA115&lpg=PA115&dq=perversion+female+breast+fetish+paraphilia&source=bl&ots=xBS1hZ-IM4&sig=kHv6eHbEn1wIxWXDCa3Xsmafkcs&hl|dead-url=no}}</ref>。