Before starting this blog and quite a bit since I began, I have read a lot of findings about sexuality. Some are intuitive, some are surprising, and some are, well, odd. I decided to share a few of my favorite findings about sexuality with you today.
Are your feet too cold for climax? A study by the University of Groningen in The Netherlands looked at brain scans during orgasm to see which parts light up and which turn off. In addition to findings on their original purpose, they also reported an interesting result: Both men and women had an easier time reaching orgasm with their socks on, with a 30% increase in climax among those couples who kept their feet cozy.
How cool is the penis? I recently watched a TED talk from research scientist Diane Kelly, who studies “the evolution of copulatory systems and sexual differentiation in the nervous system.” Don’t worry; I’m not sure what that means either.
Except that she has specifically studied mammalian penises and discovered that they are constructed in a unique way. The penis is stretchy like a worm but can also get hard. The general explanation is that blood flows into the penis, causing it to expand and stiffen. But blood flow alone doesn’t cause that stiffness, just like a worm can expand but not stiffen. Kelly studied cross-sections of the mammalian penis (go ahead and cringe, guys) and discovered that the fibers in the penile wall were arranged in a way that scientists had never seen in any other “skeletal” structure. In fact, “If the wall around the erectile tissue wasn’t reinforced in this way, the shape would change, but the inflated penis would not resist bending and erection simply wouldn’t work.”
The upshot: The penis is uniquely designed by God not only to expand in size, but to maintain the rigidity necessary for intercourse . . . and no other skeletal system is designed in this way.
Does size matter? While flaccid (aka “limp”) penis size varies greatly, erect penises stay pretty much in the range of 4 to 7 inches (10-17 cm). A study by Psychology of Men and Masculinity reported that 68% of men are between 4.6 and 6 inches, and a mere 0.4% are above 6.9 inches (17 1/2 cm) when erect.
How much of that can a wife feel? Aroused women have about 4.25 to 4.75 inches (10 1/2-12 cm) of vaginal length, and the most important area for sexual response is the outer one-third . . . so you guys are just fine.
Want proof that women were meant to enjoy sex? Let me introduce you to the female’s clitoris. The clitoris is a wishbone shaped organ with a knobby bit of flesh above the vagina (the clitoral head) that is particularly sensitive to touch.
The only known purpose of the clitoris is to provide pleasure. It does not assist in reproduction, urination, or menstruation. In fact, the clitoris is the only sex organ devoted solely to hmm-that-feels-so-good. God did not include the clitoris as an afterthought; clearly, He wants us wives to enjoy the gift of sexuality in marriage.
Can’t get rid of your hiccups? Try sex. A 1999 case report by Drs. R. and A. Peleg related the incident of a 40-year-old male who was struck with intractable hiccups. After four days of trying everything to get rid of them, he had sex with his wife. The case study stated, “The hiccups continued throughout the sexual interlude up until the moment of ejaculation when they suddenly and completely ceased. . . .” So the next time that glass of water or standing on your head doesn’t work, suggest a “sexual interlude” with your spouse.
Feeling down? Maybe you need a natural antidepressant. And that antidepressant would be . . . semen. Yep. A study by two evolutionary psychologists at the State of University of New York found that women regularly exposed to semen had better mood and fewer depressive symptoms. Apparently, the seminal fluid has mood-elevating compounds (endorphins, estrone, prolactin, oxytocin, thyrotrpin-releasing hormone, and serotonin) and the vagina is very absorbent.
Any research findings you’ve heard that demonstrate how interesting God made sexuality and our bodies? Which of the above findings surprises you?
Sources: Everyday Health – Does Penis Size Really Matter?; Elite Daily; Times Union; Psychology Today; TED Talks: What We Didn’t Know about Penis Anatomy by Diane Kelly; Discovery Health – Clitoris; Sexual Intercourse as a Potential Treatment for Intractable Hiccups; 10 Things You Didn’t Know about Orgasm; and a whole bunch of other articles and books I’ve read that I can’t remember to list here.