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Researchers Reveal an Evolutionary Basis for the Female Orgasm

Though a common occurrence (hopefully), the female orgasm has been a biological mystery.

by Philip Perry

Few things are as magical as the female orgasm, whether you are experiencing it, inducing it, or just a casual observer. It is essentially pure art in motion. Yet, there are many things we don’t know about the phenomenon, scientifically speaking, such as, why it exists. Scientists have been pondering this for centuries.

Apart from vestigial organs, there are few structures in the body we don’t know the function of. It seems that the clitoris is there merely for pleasure. But would evolution invest so much in such a fanciful aim? Over the years, dozens of theories have been posited and hotly debated.

One prevailing theory is the “byproduct hypothesis.” The penis gives pleasure in order to drive males toward intercourse and ensure the perpetuation of the species. The sex organs are one of the last things developed in utero. Due to this, and the fact that women develop their pleasure organ from the same physical structure the penis is formed from, the clitoris is therefore a “byproduct” of the penis. You could imagine how some women feel about this theory.

Another is the mate-choice hypothesis. Here, it is thought that since a woman take longer to “get there,” it would pay for her to find a mate invested in her pleasure. A considerate lover would make a good father, the theory posits. Yet, the female orgasm happens rarely during penetrative intercourse, undercutting this theory.

It’s been thought that the act plays a role in conception. Several studies have shown that the woman having an orgasm during intercourse increases the likelihood of impregnation. But how and why is not well understood. Now, a team of scientists suggest that the female climax once played a role in reproduction, by triggering ovulation.  

Mary Magdalen in Ecstasy. By: Michelangelo Merisi da Caravaggio. 1606.

Researchers at Yale University posed this theory, in a study published in the Journal of Experimental Zoology Part B Molecular and Developmental Evolution. Gunter Wagner was its co-author. He is a professor of ecology and evolutionary biology at the university. According to him, previous research has been looking in the wrong place. It focused on how human biology itself changed over time.

Instead, these Yale researchers began by analyzing a large swath of species and the mechanisms present in females associated with reproduction. Wagner and colleagues also looked at the genitalia of placental mammals. They focused on two hormones released during penetrative intercourse across species, prolactin and oxytocin.

Prolactin is responsible for the processes surrounding breast-milk and breast feeding, while oxytocin is the “calm and cuddle” hormone. It helps us to bond and feel closer to others. Placental mammals in the wild need these two hormones to trigger ovulation. Without them, the process cannot occur.

One major insight researchers found is that in other species, mammalian ovulation is induced by contact with males, whereas in humans and other primates, it is an automatic process operating outside of sexual activity, called spontaneous ovulation. From here, they looked at those female mammals who induce ovulation through sexual contact with males. In those species, the clitoris is located inside the vagina.

Evolutionary biologists believe that spontaneous ovulation first occurred, in the common ancestor of primates and rodents, around 75 million years ago.  From here, Wagner and colleagues deduced that the female orgasm must have been an important part of reproduction in early humans. Before spontaneous ovulation, the human clitoris may have been placed inside the vagina. Stimulation of the clitoris during intercourse would trigger the release of prolactin and oxytocin, which would in turn, induce ovulation. This process became obsolete once spontaneous ovulation made it onto the scene.

“It is important to stress that it didn’t look like the human female orgasm looks like now,” said Mihaela Pavličev, Wagner’s co-author of this study. “Homologous traits in different species are often difficult to identify, as they can change substantially in the course of evolution.” She added, “We think the hormonal surge characterizes a trait that we know as female orgasm in humans. This insight enabled us to trace the evolution of the trait across species.”

While the hypothesis is compelling, it has drawbacks. The biggest is that it’s difficult, if not impossible, at least currently, to investigate what, if any, sexual pleasure other female animals derive during copulation. Other experts say, more data is needed from other organisms to shore up this theory. Still, it seems the most persuasive argument to date.

To learn more about the biological basis of the female orgasm, click here:

 

Complete Article HERE!

How a Cervical Cancer Scare Made Me Take My Sexual Health More Seriously Than Ever

My doctor’s advice on how to not get HPV again threw me for a loop.

By Rachel Bowyer

Before I had an abnormal Pap smear five years ago, I didn’t even really know what that meant. I’d been going to the gyno since I was a teenager, but I never once really thought about what a Pap smear was actually testing for. I just knew I’d have a “twinge” of discomfort, as my doc always says, and then it would be over. But when my doctor called me to tell me I needed to come back in for more testing, I was pretty concerned. (Here, find more on how to decipher your abnormal Pap smear results.)

She assured me that abnormal Paps are actually quite normal, especially for women in their 20s. Why? Well, the more sexual partners you have, the more likely you are to get human papillomavirus (HPV), which is what generally causes the abnormal results. I quickly found out that it was the cause of mine, too. Most of the time, HPV resolves on its own, but in some cases, it can escalate into cervical cancer. What I didn’t know at the time is that there are several steps between testing positive for HPV and actually having cervical cancer. After having a couple of colposcopies, procedures where a tiny bit of tissue is removed from your cervix for closer examination (yes, it’s as uncomfortable as it sounds), we discovered that I had what’s known as high-grade squamous intraepithelial lesions. That’s just a technical way of saying that the HPV I had was more advanced and more likely to turn into cancer than other kinds. I was scared, and I got even more scared when I found out I had to have a procedure to remove the tissue on my cervix that was affected, and that it needed to be done ASAP—before it got worse. (According to new research, cervical cancer is deadlier than previously thought.)

Within two weeks of finding out about my abnormal Pap, I had something called a loop extrosurgical excision procedure, or LEEP for short. It involves using a very thin wire with an electrical current to cut away precancerous tissue from the cervix. Normally, this can be done with local anesthesia, but after an attempt that went awry (apparently, local anesthetic isn’t as effective for everyone as it’s supposed to be, and I found that out the hard way…), I had to make a second trip to the hospital to have it done. This time, I was sedated. After six weeks, I was declared healthy and ready to go, and told I needed to have a Pap smear every three months for the next year. Then, I’d go back to having them once yearly. Let’s just say I’m not a great patient, so after all was said and done I knew I never wanted to have to go through this process again. Since there are over 100 strains of HPV, I knew it was a real possibility that I could contract it again. Only a small number of the strains cause cancer, but at that point, I really didn’t want to take any chances.

When I asked my doctor how to prevent this situation from happening again, her advice really surprised me. “Become monogamous,” she said. “That’s my only option?” I thought. I was dealing with the perils of the New York City dating scene at the time, and at that point couldn’t even imagine meeting someone I’d want to go on more than five dates with, let alone finding my mate for life. I had always been under the impression that as long as I was *safe* about sex, opting not to settle down wouldn’t be detrimental to my health. I almost always used condoms and got tested for STIs regularly.

Turns out, even if you use a condom every single time you have sex, you can still get HPV because condoms don’t offer complete protection against it. Even when used correctly, you can still have skin-to-skin contact when using a condom, which is how HPV is passed from one person to another. Pretty crazy, right? I didn’t think there was anything wrong with not wanting to be monogamous (and still don’t), so it was hard to grasp the fact that my ideological stance on sex was directly opposed to what was best for my sexual health. Was my only option truly to settle down at 23 and decide to only have sex with one person for the rest of my life? I wasn’t ready for that.

But according to my doctor, the answer was essentially, yes. To me, this seemed extreme. She repeated to me that the fewer partners you have, the lower your risk of contracting HPV. Of course, she was right. Though you can still get HPV from a long-term partner that could take years to show up, once your body clears whatever strains they have, you won’t be able to get it from them again. As long as you and your partner are only having sex with each other, you’re good to go in terms of re-infection. At the time, I was pretty taken aback by the fact that the best thing I could do to protect my sexual health was basically to not have sex until I found “the one.” What if I never found that person? Should I just be celibate forever!? For the next couple of years every time I even thought about having sex with someone, I had to ask myself, “Is this really worth it?” Talk about a mood killer. (FYI, these STIs are much harder to get rid of than they used to be.)

Truthfully, it didn’t turn out to be such a bad thing. Whenever I decided to have sex with someone in the years after that, not only did I follow safe-sex practices to the letter, but I also knew that I had strong enough feelings about the other person for it to be worth the risk I was facing. Basically, that meant I was genuinely emotionally invested in every person I slept with. While some would say that’s how it should be all the time, I don’t really subscribe to that school of thought—in principle. In practice, however, I did save myself a ton of heartache. Since I had fewer partners who I got to know better, I dealt with less post-sex ghosting. Some people might not mind that, but even when I wasn’t super-invested in someone, the ghosting part almost always sucked.

Now, five years later, I happen to be in a long-term monogamous relationship. While I can’t say that it happened directly because of my experience or my doctor’s advice, it’s certainly a relief when what your heart wants and what’s best for your health happen to match up. And not having to constantly worry about HPV the way I once did? Love.

Complete Article HERE!

Time to make room for sex in our care homes

We need to open up to the significance of love and sexuality in later life

The persistence of romantic love in long-term relationships is, unsurprisingly, associated with higher levels of relationship satisfaction.

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Although Valentine’s Day is often criticised as a cynical creation by florists and the greeting cards industry, it is a useful focal point for considering love and sexuality as elements of human wellbeing that often escape attention in healthcare.

This neglect is most marked in later life, when popular discourse on late life romance is dominated by simple notions of asexuality or by ribald jokes

There are many reasons why healthcare professionals need to learn more about human love and sexuality, not least of which is a fuller understanding of the nature and meaning of ageing.

exuality is a core element of human nature, encompassing a wide range of aspects over and above those related to genital functions, and the medical literature has rightly been criticised for taking too narrow a vision of sexuality.

We need to open up to the continuing significance of love and sexuality into later life

This narrow vision is paralleled by a steady trend in the neurosciences of “neuroreductionism”, an over-simplistic analysis of which parts of the brain light up in sophisticated scanners on viewing photos of a loved one.

We need to open up to the continuing significance of love and sexuality into later life, understanding that sexuality includes a broad range of attributes, including intimacy, appearance, desirability, physical contact and new possibilities.

Studies

Numerous studies affirm sexual engagement into the extremes of life, with emerging research on the continuing importance of romantic love into late life. There is also reassuring data on the persistence of romantic love in long-term relationships, unsurprisingly associated with higher levels of relationship satisfaction.

A growing literature sheds light on developing new relationships in later life, with a fascinating Australian study on online dating which subverts two clichés – that older people are asexual and computer illiterate.

The challenge in ageing is best reflected in the extent to which we enable and support intimacy and sexuality in nursing homes. Although for many this is their new home, the interaction of institutional life (medication rounds, meals), issues of staff training and lack of attention to design of spaces that foster intimacy can check the ability to foster relationships and express sexuality.

For example, is the resident’s room large enough for a sofa or domestic furnishings that reflects one’s style, personality and sense of the romantic? Are sitting spaces small and domestic rather than large day rooms? Do care routines allow for privacy and intimacy? Is there access to a selection of personal clothes, make-up and hairdressing?

Granted, there can also be complicated issues when residents with dementia enter new relationships and the need to ensure consent in a sensitive manner, but these should be manageable with due training and expertise in gerontological nursing and appropriate specialist advice.

Supports

A medical humanities approach can provide useful supports in education from many sources, ranging from literature ( Love in the Time of Cholera), film ( 45 Years or the remarkable and explicit Cloud 9 from 2009) or opera (Janácek’s Cunning Little Vixen, a musical reflection of the septuagenarian composer’s passion for the younger Kamila Stösslová).

We, as present and future older Irish people, also need to take a step back and consider if we are comfortable with a longer view on romance and sexuality.

The Abbey Theatre did us considerable service in 2015 with a wonderful version of A Midsummer Night’s Dream set in a nursing home. We were struck by a vivid sense of the inner vitality of these older people, suffused with desire, passion and romance.

This contemporary understanding of companionship and sexuality in later life was enhanced by casting Egeus as a son exercised about his mother’s romantic choices instead of a father at odds with his daughter.

We can also take heart from an early pioneer of ageing and sexuality, the late Alex Comfort. Best known for his ground-breaking The Joy of Sex, he was also a gerontologist of distinction, and wrote knowledgeably about the intersection of both subjects with characteristic humour.

He wrote that the things that stop you having sex with age are exactly the same as those that stop you riding a bicycle: bad health, thinking it looks silly or having no bicycle, with the difference being that they happen later for sex than for the bicycle.

His openness and encouragement for our future mirror Thomas Kinsella’s gritty poem on love in later life, Legendary Figures in Old Age, which ends with the line: ‘We cannot renew the Gift but we can drain it to the last drop.’

Complete Article HERE!

5 Health Reasons To Make Love, Even When You’re Not In The Mood

 

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At the start of every relationship, everything is brand new, and we just can’t get enough of our partner. During the honeymoon phase, we engage in extra PDA, barely keeping our hands off each other, especially sexually. However, there comes a point where one of us wants sex, and the other isn’t in the mood for it, but science suggests we should consider having more sex for our health’s sake.

Sex droughts can hit couples, which can be a sign of comfortability, or married life. Infrequent sex can occur due to children, work, and stress, but having sex can actually lighten the load of these daily obstacles.

April Masini, relationship expert and author, believes “intimacy is as important as an apple keeping the doctor away.”

“Nurturing intimacy in relationships is important — and should be just as important a health concern as getting a regular mammogram or a colonoscopy! Happy, healthy, intimate relationships are crucial to good physical and mental health,” she told Medical Daily.

Scientists have found the reason why sex feels so good is due to the release of dopamine and opioid chemicals. Sexual stimulation sends the brain into an altered state of consciousness; it blocks out everything else, and allows us to solely concentrate on the sensation. In other words, it enhances brain activity.

Regular sex can do more than make us feel good; it can boost our overall health in these five ways.

Boosts Immune System

Frequent sex can help keep our immune system strong, protecting us from getting the common cold. Dr. William Kolbe, author of the book The Rejuvenating Power of Masturbation, suggests sex’s immune boosting power comes from its interaction with the pituitary.

“Sexual intimacy(solo and paired) sends signals to the pituitary to stimulate the major endocrine axis including the thymus gland, a major player in our immune system,” he told Medical Daily.

A 2009 study in Psychology Reports found having sex at least once or twice a week led to 30 percent more immunoglobulin A (IgA) in their saliva, than those who reported having no sex. IgA is an antibody that helps fight infections and the common cold. They reach their peak in couples who had sex a few times a week.

Lowers Blood Pressure

Sex does not significantly raise blood pressure in men, rather it can help lower it to normal levels. A 2000 study in Biological Psychology, researchers asked 51 healthy men and women, between the ages of 20 to 47 about how much sex they have; followed by measuring their blood pressure.

They concluded more sex was linked to decreased blood pressure.

According to Kolbe: “Intimacy is an excellent cardiovascular workout thus providing positive effects to blood pressure. The increase in sex hormone production, especially estrogen, is very beneficial for the heart.”

Aids Heart Health

Unsurprisingly, sex is good for lowering our blood pressure, and for reducing the risk of heart disease. A 2002 study in J Epidemiol Community Health found regular sexual intercourse reduces the risk of stroke and coronary heart disease (damage or disease in the heart’s major blood vessels) in men.

Similarly, a 2010 study in the American Journal of Cardiology found men with low frequency of sex had an increased risk of cardiovascular disease. Men who reported sexual activity of once a month or less had a higher risk of cardiovascular disease than men who reported having sex twice a week or more. This study is the first to look at frequency of sex and heart risk independently from erectile dysfunction, according to the researchers. They speculate men who are having sex regularly, may be in supportive intimate relationships. This may improve health via stress reduction and social support.

Stress Reducer

Feeling relaxed and mellow after sex tend to go hand in hand in the bedroom. A 2002 study in Archives of Sexual Behavior suggests semen may have antidepressant properties. Contact with semen during sex can help boost happiness levels for women, therefore, reducing stress

“Sex can reduce a woman’s stress level. This is especially so if the woman is relaxed and not constricted during the sex,” Dr. Fran Walfish, Beverly Hills family and relationship psychotherapist, told Medical Daily.

Keri Simon, a clinical social worker in St. Louis, who sees many couples, believes the stress hormone cortisol is reduced via a connection.

“More is communicated through intimate gestures which in a primitive example, communicates we have no need to be on defense, addressing our fight or flight responses. This communication is powerful — just ask anyone who has felt connection through a squeeze of the arm, pat on the back, hug, etc., and they can share that human intimacy is a powerful force of connection,” she told Medical Daily.

Improves Sleep

It’s likely some of us pass out right after sex, and this happens for a reason. The endorphins released during sex can help us enter natural states, like euphoria, leading us to feel less stressed. The oxytocin released during orgasm also promotes sleep. They’re released from the pituitary gland of the brain during periods of strenuous exercise, emotional stress, pain, and orgasm. Oxytocin is known as the “love hormone” because it’s typically released when two people make physical contact.

Interestingly, a 2014 study found women in romantic relationships who got an extra hour of sleep had higher levels of sexual desire. They also experienced a 14 percent increase in the likelihood of sex the next day. Women with longer average sleep duration also reported greater vaginal lubrication during sex than those with shorter average sleep.

The relationship between going to sleep and good sex seems to work both ways.

Complete Article HERE!

When You Are Old, Chinese, and Gay

Gay, lesbian, and bisexual retirees seek companionship and acceptance in old age, but some find it harder than others.

 

By Fan Yiying

Zhang Guowei, a 76-year-old bisexual veteran, is relishing his twilight years. “I couldn’t be happier with my life post-retirement,” says Zhang, who was a doctor in the army until 1994.

As a former military officer, Zhang’s monthly pension is 10,000 yuan ($1,440) — five times the average pension in Changde, the small city in central China’s Hunan province where he lives with his boyfriend. Zhang divorced his wife in 2003 and met the love of his life — Wu, who is 40 years younger — a year later on the internet. “I expect him to accompany me through the remainder of my life,” Zhang tells Sixth Tone after finishing his daily exercise routine.

Zhang says he is bisexual but prefers men. He gained support and understanding from his ex-wife and two daughters when he came out to them in 2003. When he passes on, his assets will be divided equally among his daughters and his boyfriend. “My kids have no problem sharing with Wu because they know he is the one taking care of me in my final years,” he says.

The May-December couple have been living together since 2005 in an apartment provided by the government for retired army cadres and their families. The 10-story building houses a dozen veterans in their 60s through 90s, some living alone and others with their spouses.

When Wu first moved in, Zhang told his neighbors that Wu was his gan erzi, or adopted son, whom he met online. (The Chinese concept of gan erzi allows for a sort of informal adoption of adults, with no legal or religious implications.) “I had this vague idea that they might be gay,” says 74-year-old Lu Shize, who lives downstairs. “But it’s none of my business to ask about his private life,” Lu adds.

Last year, following in other veterans’ footsteps, Zhang wrote a 218-page autobiography — including his experiences of recognizing his sexuality — and shared it with his fellow cadres. His neighbors were very understanding. “Everyone knows about us, and no one gossips or gives us a hard time,” Zhang says.

Lu, who had never before met any out gay or bisexual men, says he admires Zhang’s courage. “Being gay or not, it doesn’t change the way I see him,” Lu says. “We are in our 70s; what’s more important than being happy and healthy?”

China’s population is rapidly aging. The proportion of the population aged 60 or older was more than 16 percent at the end of 2015, according to the Ministry of Civil Affairs, and that number is only set to increase. The nation’s changing demography brings with it challenges for managing welfare and health care, especially as fewer seniors are able to count on their families for support.

Two older men hold a symbolic wedding ceremony in Beijing, Jan. 30, 2013.

Decades of family-planning restrictions mean that even seniors who have children often must become self-reliant, as children born during the one-child policy can’t afford to support two parents and four grandparents. As a result, for many elders, being childless is no longer a major concern or an unusual occurrence.

Wen Xiaojun, 56, is single and childless. Immediately after he retired in November from working as a civil servant, he rented an apartment in Sanya, on the southern island of Hainan, where he is spending six months avoiding the cold of his hometown in the eastern province of Zhejiang. “I still feel young and restless,” Wen tells Sixth Tone. “Being childless makes it easy for me to travel after retirement.”

Like other older people, LGBT seniors want to have rich, fulfilling, and independent lives. They hope that retirement will give them the opportunity to focus on what they truly love.

Wen enjoys his slow-paced life in Sanya. He goes to exhibitions, takes walks along the beach, plays volleyball with locals, and sometimes meets up with men he contacts through Blued — a popular gay social app, on which he hopes to find a long-term boyfriend.

But dating isn’t easy for older gay men. “Younger generations can build a relationship quickly by kissing or having sex soon after they meet offline,” Wen explains. “But we want something more spiritual and stable.”

Similarly, 62-year-old Ah Shan, as he’s called within the gay community, says that finding a partner is his biggest problem these days. His finances are secure, as he owns his apartment in Guangzhou — capital of southern China’s Guangdong province — and receives a monthly pension of about 5,000 yuan, but he has been single for four years and is ready for that to change. In the meantime, he is renting out one of his bedrooms to gay friends so he has some company at home.

Ah Shan poses for a picture in Guangzhou, Guangdong province, 2013.

Most gays, lesbians, and bisexuals of Ah Shan’s generation knew little about their sexual orientation until internet access became available at the turn of the millennium. Even when Ah Shan was working in the U.S. in the late 1980s, he refused to consider himself gay because the only information he’d heard about gay topics in China was AIDS-related or implied that homosexuality was shameful or immoral. “I think I was brainwashed,” Ah Shan laughs.

Over the last two years, Ah Shan has been working on a gay oral history project, recording the stories of older gay men in Guangzhou. He has talked to more than 60 gay men aged from 60 to 90, who have experienced some of China’s most critical historic moments, from the Cultural Revolution to the nation’s opening-up era. “If we don’t record them now, part of the important history of LGBT in China will be gone,” he says.

Many of the men are married and choose not to come out to their families. “They go to this particular park to chat with other gay men in the daytime to release their emotions, but when the sun goes down, they have to return home to bear their family responsibilities,” Ah Shan says with a sigh.

Ah Shan’s own parents passed away before he was brave enough to tell them the truth. His mother died in 2000, a year before homosexuality was declassified as a mental illness in China.

Compared with gay and bisexual men, older women find it even more difficult to disclose or discuss their sexual orientation. Since 2010, 45-year-old Yu Shi from Chengdu, the capital of Sichuan province, has been working on an oral history project for older same-sex-attracted women across China, but she says the process of locating participants and persuading them to share their stories is tough.

“Chinese women are in a weak position in the family, which doesn’t allow them to speak out for themselves,” Yu says, adding that of the 30 or so lesbians who have taken part in the project over the last six years, only one has come out to her family. Many won’t divorce their husbands even if they have female partners. “Chinese people are very concerned with saving face, and they think it’s a loss of face to get a divorce if you’re already a grandparent,” she says.

Yu and her 40-year-old girlfriend have lived together for over a decade, but despite their enduring, loving relationship, they can’t enjoy the security of a formal union, as same-sex marriage is not yet legal in China. Some issues can be resolved by making a will, but others — like legal or medical power of attorney — remain a problem.

According to Yu, some LGBT seniors who are single and childless have considered building their own retirement estate where they can live together and take care of one another. Although they aren’t opposed to regular nursing homes, Yu says “they prefer to live in a place where they can open their hearts and share their experiences with others in the same circumstances.”

A lesbian couple kiss each other during an event in Shanghai, Dec. 22, 2013.

As more and more seniors live separately from their children, retirement facilities in China have struggled to meet growing demand. The government encourages investment in privately owned nursing homes, but so far none have been established exclusively for members of sexual minority groups.

Little public attention is given to the needs of older LGBT people, but to Wang Anke, a 50-year-old bisexual woman from Beijing, these individuals don’t do enough to stand up for themselves, either. “We are almost invisible,” she says.

Wang married her husband in 1990 and plans to spend the rest of her life with him. Though Wang considers herself happy and fortunate, she says that most older lesbian and bisexual women she knows are pessimistic about their senior years. “They’re lonely and lack emotional care,” Wang says, adding that many would rather live alone than move into a nursing home where they fear they can’t be themselves. “Loneliness will go to the grave with them.”

But while some LGBT seniors advocate dedicated nursing homes, Ah Shan opposes the idea of separate services. “In the long run, LGBT people shouldn’t lock ourselves in a so-called safe place,” he says. “What we really need is for the overall environment to allow us to live comfortably in the community.”

Complete Article HERE!