Puas cawv tiag tiag ua rau koj zoo dua nyob rau hauv txaj?

Does alcohol really make you better in bed?

 

Powered by Guardian.co.ukQhov tsab xov xwm hu ua “Puas cawv tiag tiag ua rau koj zoo dua nyob rau hauv txaj?” raug sau los ntawm Sally Adams, rau theguardian.com rau hnub Tuesday 17th kaum ib hlis 2015 06.30 UTC

Haus dej cawv "... provokes lub siab xav, tab sis nws yuav siv sij hawm tam sim ntawd tus ua tau zoo "hais tias Shakespeare, tab sis yog nws txoj cai? Nws yog ib qho kev ntseeg tias haus dej haus cawv yuav pab peb poob peb inhibitions thiab kuj ua raws li ib tug aphrodisiac (tej zaum!). Tab sis nws tsis yog feem ntau xav li cas txog raws li ib tug ua tau zoo enhancer nyob rau hauv lub chav pw. Kuv xa koj mus rau "Brewers droop", lub hnub nyoog-laus npe menyuam yaus rau ib ntus erectile kawg ntxias los ntawm dej cawv.

Cov kev xav ntawm cov cawv ntau heev raws li ib tug mob siab rau killer yog backed los ntawm anecdotal thiab cov pov thawj scientific, tab sis qhov no tsis zoo li dampen rau hauv xov xwm fascination nrog nws raws li ib tug libido enhancer. Puas muaj ib qho tseeb qab lub notion tias ib tug ob peb pints yeej yuav ua koj ib tug zoo dua lover los yog no cia li lwm "tau ntxim hlub" science zaj dabneeg?

Muaj yog ib tug tseem ceeb lub cev ntawm kev tshawb fawb uas qhia cawv yog txuam nrog heightened kev sib deev teb (nce arousal thiab enhanced orgasm) thiab loosening ntawm kev sib deev inhibitions. Keeb kwm, haus dej haus cawv kuj muaj ib tug ntev lub koom haum nrog romance thiab pw ua ke nyob rau hauv cov nqe lus ntawm advertising. Nyob rau lwm cov tes, haus dej haus cawv yog txuas nrog ib qho kev nce nyob rau hauv pheej hmoo ua kev sib deev yeeb yam, uas yuav ua tau nyob rau hauv pliaj cev xeeb tub thiab kev sib deev kis cov kab mob. Muab cov tawm tsam los, yog vim li cas xov xwm khoom zoo siab rau qhov zoo lub koom haum ntawm haus dej cawv thiab pw ua niam txiv, thiab yog dab tsi ua cov kev tshawb fawb cov kev tshawb fawb qab rau hauv xov xwm cov dab neeg qhia rau peb?

Ib tug tsis ntev los no zaj dabneeg nyob rau hauv lub Independent qhia rau lub neeg pab leg ntaubntawv ua los ntawm ib tug tshiab phau ntawv hu ua "Lub txij nkawm pw ua ke tshuaj". Pw ua ke kws muaj txuj Dr Kat Van Kirk ntseeg hais tias haus npias yuav ua tau kom plaub cov kev txhim kho nyob rau hauv kev sib deev kev rau cov txivneej: (1) ncua ejaculation, (2) kho kom zoo libido thiab ntau khaus erections, (3) muaj kev sib deev muaj lub zog thiab (4) uas npias yuav pab tau "koj zuag qhia tag nrho noj qab haus huv" thiab li ua rau koj tsawg "sluggish nyob rau hauv pw ua niam txiv". Interestingly, lub tsuas taw tes rau reference ib tug phooj ywg saib cov kev tshawb fawb tsab xov xwm no rau hauv lub thib peb – hais tias "haus dej haus cawv pab txoj kev sib deev muaj lub zog".

Ib txoj kev tshawb no luam tawm nyob rau hauv lub European Journal ntawm Epidemiology lus ceeb toom rau ib tug meta-tsom xam ntawm 13 kev tshawb fawb saib mob plawv thiab npias noj. Qhov nws tshawb pom kom muab ib J-zoo li tus nkhaus, tawm tswv yim ib tug yuav raug txo tus kab mob plawv nyob rau hauv cov neeg uas haus dej haus 55g ntawm npias ib hnub los yog tsawg dua. Nws yog ib qho tseem ceeb kom nco ntsoov tias txoj kev tshawb no tsis tau ntsuas kev sib deev muaj lub zog, tsis txo mob plawv twb npaum li cas raws li ib tug lub npe. Tsis tas li ntawd, nws tsis yog tag nrho ntshiab dab tsi "grams cawv" txhais tau tias ntawm no. Yog hais tias lub ntsuas qhia ntshiab ethanol, 55g ntawm npias yog sib npaug rau kwv yees li ntawm 7 units los yog 3 thiab ib tug ib nrab pints ntawm haum tsis muaj zog npias ib hnub twg. Qhov no mas, zoo li ib tug ntau ntawm cov cawv yuav tsum tau noj txhua hnub!

Ib tsab xov xwm nyob rau hauv Lub Ntaus xov tooj qhia rau ntawm ib tug 2009 txoj kev tshawb no ua los ntawm cov Western Australia tus Keogh lub koom haum rau kev kho mob kev tshawb fawb. Txoj kev tshawb no soj ntsuam tej yam uas haus dej haus cawv siv rau txiv neej erectile kawg. Cov ntaus xov tooj tsab xov xwm tsis muab ib qhov txuas mus rau ib tug phooj ywg saib tsab xov xwm, tab sis kuv pom ib tug txoj kev tshawb rau no luam tawm nyob rau hauv lub Phau ntawv Journal ntawm kev sib deev tshuaj. Nws sau ntaub ntawv los ntawm 1,580 txiv neej nyob rau erectile muaj nuj nqi, cawv, thiab kev haus luam yeeb. Cov ntaus xov tooj qhia tias cov txiv neej uas haus muaj mob loj tsawv nqi ntawm dej cawv qhia 30% tsawg erectile cov teeb meem tshaj uas tsis yog-drinkers. Cov tsab xov xwm txhais no nrhiav raws li ib tug "paaj lub koom haum" ntawm moderate drinkers thiab erectile muaj nuj nqi.

Tus sau phau ntawv ntawm cov kev tshawb fawb daim ntawv qhia hais tias tsis muaj ntawm cov qhia koom haum ua teb ntawm haus raws li txoj cai thiab erectile muaj nuj nqi twb "cov lus tseem ceeb" kom txog thaum cov kab mob plawv thiab haus luam yeeb raws li txoj cai tau tswj nyob rau hauv analyses. Nws tseem ceeb heev kom nco ntsoov tias txoj kev kawm no siv self-daim ntawv qhia kev ntsuas ntawm cawv noj thiab erectile kawg, lub ntsiab lus tej koom haum ua teb cai yog nyob rau ntawm lub peev xwm thiab kam ntawm cov neeg los yog qhia lawv haus dej haus cawv siv thiab erectile cov teeb meem

Ib tug thib peb txoj kev tshawb qhia nyob rau hauv Lub Independent xyoo no ntsia seb dej cawv yuav boost poj niam nrog txiv neej pw drives. Txoj kev tshawb no pom tias cov nram qab no muaj mob loj tsawv cawv noj, theem ntawm testosterone nce nyob rau hauv cov poj niam, tab sis tsis cov txiv neej. Qhov no tej zaum yuav pov thawj ntawm dej cawv ua lub libido poj niam ntawm ib tug ib ntus surge nyob rau hauv cov txiv neej nrog txiv neej pw lawm. Txawm tias qhia nyob rau hauv Lub Independent xyoo no, cov kev tshawb fawb nyob rau hauv lo lus nug tshwm tuaj los ntawm ib tug Txoj kev tshawb no luam tawm nyob rau hauv Xwm los ntawm Alko (ib tug loj Finnish cawv retailer) nyob rau hauv 1994.

Cov kev tshawb fawb nws tus kheej yog ib tug ib-nplooj tsab ntawv ceeb toom rau ib qho kev sim txoj kev tshawb no uas txiv neej thiab cov poj niam uas tau muab yog ib tug dej cawv los yog ib tug uas tsis yog-alcoholic kua txiv, thiab lawm ntau ntau tau ntsuas (txawm hais tias nws tsis yog tseeb yuav ua li cas). Thaum tswj rau contraceptive siv thiab cev ntas (uas muaj feem xyuam rau lawm ntau ntau) cawv ntau zog testosterone piv nrog cov placebo nyob rau hauv cov poj niam, tab sis tsis cov txiv neej.

Muaj ib tug xov tooj ntawm methodological cov lus nug uas yuav tsis tau teb los ntawm cov ntaub ntawv nyob rau hauv luv luv no daim ntawv qhia – ho cov neeg koom paub yog hais tias lawv tau txais ib qho dej los yog placebo haus? Nyob rau hauv dab tsi tej yam kev mob tau koom mus soj ntsuam? Txawm li cas los, rau kuv cov biggest lo lus nug yog vim li cas yuav rau hauv xov xwm tsab ntawv ceeb toom rau ib tug txoj kev tshawb nrhiav dua 20 xyoo dhau los, uas yog ib tug txiav txim nqi ntawm lub sij hawm nyob rau hauv lub ceev ceev mus lub ntiaj teb no ntawm kev tshawb fawb?

Interestingly, tus ntawv ntawm qhov tsab xov xwm nyob rau hauv Lub Independent coincided nrog ib tug xovxwm tso tawm rau ib tug tshiab vodka los ntawm ib lub tuam txhab hu ua Haus dej cawv-plus. (Nws yog tsis meej seb qhov no lub tuam txhab yog koom tes nrog Alko). Nyob rau hauv cov xovxwm tso tawm, lub vodka no yeej aimed ntawm cov poj niam, nrog neeg pab leg ntaubntawv ua hais txog lub peev xwm ntawm cawv rau kom poj niam libido: "Hav Gals: Muab Tshiab Lub ntsiab lus mus rau hauv koj Lub Xya hli ntuj 4 Foob pob hluav taws; Alko-Plus Tsim 'hlob Vodka' hais tias nws hais tias Qab poj niam deev siab ".

Rov cov khoom thiab cov coj kev tshawb fawb tshawb fawb tau ua rau kuv xav txog cov teeb meem muab kev koom tes nyob rau hauv kev kawm pw ua ke thiab haus dej haus cawv thiab nyob rau hauv qhia thiab txhais cov kev tshawb fawb tshawb pom. 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.

Thaum kawg, 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. Tsis tas li ntawd, 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. Txawm li cas los, 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.

Dr Sally Adams is a lecturer in health psychology at the University of Bath. Her research examines the cognitive and behavioural mechanisms underlying alcohol and tobacco use. Find her on Twitter @SallyScientist

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