Australian Natural Bodz - - Health Sex & Longetivity -

Women re­act more strongly phys­i­cally to sex­ual stim­uli af­ter a short burst of phys­i­cal ex­er­cise. And no, forr once it has noth­ing to do with testos­terone, ac­cord­ing to the re­sults of an ex­per­i­ment pub­lished by Amer­i­can psy­chol­o­gists in the Jour­nal of Sex­ual Medicine. In the mid­nineties psy­chol­o­gists att the Univer­sity of British Columbia in Canada dis­cov­ered that mod­er­ately in­ten­sive ex­er­cise caused women to phys­i­cally re­act more strongly to a short porno­graphic film clip. [Be­hav Res Ther. 1995 Jul; 33(6): 651­64.] The Cana­di­ans got women to cy­cle for 20 min­utes at 70 per­cent of their VO2­max: just a lit­tle bit too in­ten­sive to be able to still con­duct a con­ver­sa­tion. They ob­served that the blood cir­cu­la­tion in the vagi­nal wall in­creased more when the women were shown erotic im­ages af­ter ex­er­cise than af­ter a pe­riod of in­ac­tiv­ity. The ef­fect reached its cli­max [no pun in­tended] a quar­ter of an hour af­ter the cy­cling ses­sion, and half an hour later it had sub­sided. [Be­hav Res Ther. 1996 Feb;; 34((2):) 143­8.] ] In 2008 the psy­chol­o­gist Lisa Dawnwn Hamil­ton of the Univer­sity of Texas at Austin pub­lished the re­sults of a study in the same vein as that of the Cana­di­ans. Hamil­ton got women aged be­tween 18 and 45 to run on a tread­mill for 20 min­utes at 70 per­cent of their VO2­max. Af­ter­wards she first showed them an ex­cerpt from a travel doc­u­men­tary and then an erotic but woman­friendly film. On an­other oc­ca­sion the women were shown the same im­ages, but with­out hav­ing first ex­er­cised. Hamil­ton used a vagi­nal pho­to­plethys­mo­graph to mea­sure the blood cir­cu­la­tion in the vagina, com­par­ing the mea­sure­ments dur­ing the travel doc­u­men­tary with the mea­sure­ments tak­ing dur­ing the erotic film. The big­ger the dif­fer­ence, the stronger er the phys­i­cal sex­ual re­ac­tion to the e im­ages. The re­sults showed that the ex­er­cise ses­sion in­creased the e sex­ual re­sponse. The re­searchers took saliva sam­ples and mea­sured the testos­terone con­cen­tra­tion in them. Be­cause there was hardly any rise, the re­searchers think that testos­terone does not play a role in the pro­sex­ual ef­fect of ex­er­cise. The re­searchers also mea­sured the con­cen­tra­tion of al­pha­amy­lase in the saliva sample. This in­creased more while watch­ing erotic im­ages in the women who had ex­er­cised than in the women who had been in­ac­tive. Your al­pha­amy­lase con­cen­tra­tions in­crease when there’s more no­ra­drenalin cir­cu­lat­ing in your blood. And this hap­pens when the ner­vous sys­tem stim­u­lates the mus­cles to un­der­take phys­i­cal labour. The re­searchers con­clude that the pro­sex­ual ef­fect of ex­er­cise is a re­sult of the ac­ti­va­tion of the sym­pa­thetic ner­vous sys­tem. They don’t ex­clude the pos­si­bil­ity that ex­er­cise boosts the pro­duc­tion of dopamine in the brain, and that this in turn in­creases the phys­i­o­log­i­cal re­sponse to sex­ual stim­uli. The ex­er­cise had no ef­fect of the ex­pe­ri­ence of sex­ual arousal. The ef­fects mea­sured were purely phys­i­cal. Ref­er­ence: J Sex Med. 2008 Apr;5(4):845­53.

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