Christianity and Masturbation

[Jenny A]

[F]requent ejaculation is one of the best ways to prevent prostate cancer.  Masturbation five or more times a week is very good for men. Twenty-one times a month is the threshold for best results. Harvard Medical School  New Scientist (both articles link the same two studies).  

  Then I suppose I have a super-ULTRA-healthy prostate by now.

Ah hah!  Apparently there are positives for us gals too.  The genitals stay healthy and self lubricating longer if we masturbate. 
http://www.everydayhealth.com/sexual-hea...efits.aspx  Hubby will appreciate that in a few years. Oh and it reduces the chance or heart disease and urinary tract infections.  Also strengthens the pelvic floor making incontinence less likely. Obviously all good things.  http://www.womenshealthnetwork.com/sexan...ation.aspx 

Once again---it's a violation of natural law because. . .

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Not all denominations agree on the topic nor is the prohibition a major essential doctrine. It all depends on how you interpret the story of Onan spilling his seed and whether masturbation was considered part of 'pornea'. The pleasure derived from the sexual organs serves to both motivate men and women to join in productive unions and to strengthen the marital bond. According to natural law, masturbation is considered an abuse of the natural function of the genetalia, since it is not conducive to either.

Orgasms helps you: sleep better; increases your sexual longevity; reduces depression; and reduces the risk of cancer, incontinence, cardiovascular disease, and type 2 diabetes.  http://www.womenshealthnetwork.com/sexan...ation.aspx 
Oh, and women who masturbate have longer sex lives with their partners than women who don't.  Hubby will like that.   And it's generally good for our sex lives with our partners.  People who masturbate have more fulfilling sexual relations with others.

And, as a former chronic pain sufferer, I can tell you that it's a mild pain reliever as well.

Sounds like genitalia serve a few more natural purposes than just deification and baby making.  And like all parts of your body they, and you are healthier if you use them sensibly and often.

So, it sounds to me like your description of "natural function" is limited at best, and unhealthy at worst.