酒精是否真的能讓你在床上好?

Does alcohol really make you better in bed?

 

技術Guardian.co.uk這篇文章題為 “酒精是否真的能讓你在床上好?” 寫由薩莉·亞當斯, 對於theguardian.com週二11月17日 2015 06.30 世界標準時間

醇“......挑釁的慾望, 但它帶走的表現“莎士比亞說:, 但他說得對? 它是共同的信念,酒精可以幫助我們失去我們的禁忌,也可以作為一種壯陽藥 (有時!). 但它不是通常被認為是在臥室性能增強劑. 我是指你“釀酒商下垂”, 臨時勃起功能障礙古老的綽號由酒精引起.

太多的酒精作為一種激情殺手的概念是由軼事和科學證據備份, 但是這似乎並沒有與它挫傷了媒體的魅力為性慾增強. 有沒有這個概念的背後真相,一對夫婦品脫真的可以讓你更好的情人或者這只是另一種“性感”的科學故事?

有一個顯著 的研究機構 這表明,酒精與性升高的反應有關 (增加的覺醒和增強性高潮) 和鬆動的性禁忌. 從歷史上看, 酒精也有廣告方面與浪漫和性長協. 另一方面, 醇與增加危險性行為鏈接, 這可能會導致不希望的妊娠和 性傳播疾病. 鑑於這些相反的作用, 為什麼媒體文章往往側重於酒精和性之間的正相關關係, 什麼做的研究報告背後的媒體的報導告訴我們?

最近 故事獨立 報告了一個稱為“婚後性解決方案”的新書提出的要求. 性愛專家博士吉凡柯克認為,喝啤酒會導致四個不同的改善男性的性經驗: (1) 射精延遲, (2) 增強性慾和更激烈的勃起, (3) 增加性耐力和 (4) 啤酒能幫助“你的整體健康”,從而讓你少“性別行動遲緩”. 有趣, 引用一個同行審查的研究文章的唯一一點是第三 – 認為“提高酒精性耐力”.

發表在研究 歐洲流行病學雜誌 上的薈萃分析報告 13 研究看心血管疾病的危險和啤酒消費. 這一發現表明一個J形曲線, 提示心血管疾病的那些誰喝啤酒55克一天或更小的風險降低. 需要注意的是這項研究沒有實際測量性耐力是非常重要的, 代替降低心血管風險被作為一個代理. 還, 它不是完全清楚什麼是“克酒精”是指這裡. 如果這一措施體現了純乙醇, 55啤酒g是約相當於 7 單位或 3 每天相當薄弱啤酒半品脫. 這似乎是一個大量的酒精,以每天消耗!

中的一種製品 電訊報上 2009 研究 由西澳大利亞州的基奧醫學研究所進行的. 本研究飲酒對男性勃起功能障礙的影響. 每日電訊報的文章沒有提供一個鏈接到一個同行評議的文章, 但我發現發表在這個研究 性醫學雜誌. 它收集的信息從 1,580 男子勃起功能, 醇, 煙草使用. 每日電訊報報導,誰飲酒適量的男性報告 30% 比不飲酒者少勃起問題. 文章解釋這一發現為中度飲酒者和勃起功能之間的“利好協會”.

該研究論文的作者指出,沒有飲酒的地位和勃起功能的報導協會是“統計上顯著”,直到心血管疾病和吸煙狀況分別控制在分析. 同樣重要的是要記住,研究中使用的酒精消費和勃起功能障礙的自我報告的措施, 這意味著觀察到的任何關聯依賴於參與者的準確報告其使用酒精和勃起問題的能力和意願

A third study reported in The Independent this year looked at whether alcohol can boost women’s sex drives. The study showed that following moderate alcohol consumption, levels of testosterone increased in women, but not men. This might be evidence of alcohol increasing the libido of women via a temporary surge in the male sex hormone. Despite being reported in The Independent this year, the research in question appears to come from a study published in NatureAlko (a large Finnish alcohol retailer) 在 1994.

The research itself is a one-page report on an experimental study where men and women were given either an alcoholic beverage or a non-alcoholic juice, and hormone levels were measured (although it is not clear how). When controlling for contraceptive use and menstrual cycle (which affects hormone levels) alcohol increased testosterone compared with the placebo in women, but not men.

There are a number of methodological questions that cannot be answered from the information in this short reportdid the participants know if they were receiving an alcoholic or placebo beverage? In what conditions were participants tested? 然而, for me the biggest question is why would the media report on a study conducted over 20 幾年前, which is a considerable amount of time in the fast moving world of scientific research?

有趣, the publication of the article in The Independent coincided with a press release for a new vodka by a company called Alko-plus. (It is not clear whether this company is affiliated with Alko). In the press release, the vodka is specifically aimed at women, with claims made regarding the capability of alcohol to increase female libido: “Hey Gals: Put New Meaning Into Your July 4th Fireworks; Alko-Plus Creates ‘Lust Vodka’ that it says Increases Female Sexual Desire”.

Reviewing these articles and the corresponding research studies has made me think about the issues involved in studying sex and alcohol and in reporting and interpreting research findings. There are many complex individual differences in the psychological and physiological factors that influence the response to both sex and alcohol. The association between sex and alcohol is dependent upon alcohol dosage, alcohol expectancy, and measurement of alcohol and sexual behaviour.

In terms of dose, there may be an optimal amount of alcohol to induce these positive effects on sexual arousal or performance. Once past that threshold the effects may be more negative. This notion is supported by the biphasic nature of alcohol, with stimulant effects as blood alcohol concentration increases, but depressant effects as it decreases again.

Alcohol expectancy can also impact sexual behaviour during intoxication. Simply believing that drinking alcohol increases sexual arousal may lead to actual arousal during intoxication. Expectancies about alcohol consumption are a key element of research examining the effects of alcohol on any behaviour. It is important that research determines the impact of both the direct pharmacological effects and expectation.

最後, the way alcohol use is measured can impact on the association with sexual behaviour. The administration of alcohol in an experimental study versus self-report of alcohol use by drinkers is likely to yield different study findings. 此外, it is very difficult to directly measure sexual behaviour. Most studies have to rely on self-report of sexual arousal and performance or use proxy measures such as cardiovascular and physiological function.

Accurate representation of research evidence on alcohol and sex may not yield a “sexy” headline. 然而, clear and honest reporting of research findings and at least a link to the original published study should allow the reader to make up their own mind when faced with the scientific evidence.

In this case alcohol’s ability to increase prowess in the bedroom does not appear to be as straightforward as presented in the media. The link between sex and alcohol is a complex one and best interpreted when a clear and balanced picture is available, rather than a “sexed-up” story.

薩利·亞當斯博士是巴斯大學健康心理學講師. 她的研究探討潛在的酒精和煙草使用的認知和行為機制. 找到她的Twitter @SallyScientist

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