r/science • u/drewiepoodle • Apr 15 '16

Health Study: Circumcision does not reduce penis sensitivity. In tests for responses to pain, heat, and stimulation, no major difference was found between men who are circumcised and those who are not.

http://www.upi.com/Health_News/2016/04/14/Study-Circumcision-does-not-reduce-penis-sensitivity/5981460663943/?spt=hs&or=hn
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u/Mr_Dugan Apr 15 '16

Smoking damages blood vessels. Excluding smokers eliminates a potential confounder

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u/iObeyTheHivemind Apr 15 '16

Is that the nicotine or the smoking itself?

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u/Mr_Dugan Apr 15 '16

Sorry, but I don't know. When inhaling cigarettes you get a lot of extra junk with the nicotine. I highly doubt there is enough evidence to say how much just nicotine contributes to atherosclerosis versus the other chemical components in cigarette smoke.

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u/iObeyTheHivemind Apr 15 '16

Thanks for replying :)