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No, Scientists Have Not Found the ‘Gay Gene’

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By Ed Yong

The media is hyping a study that doesn’t do what it says it does.

A woman works with human genetic material at a laboratory in Munich May 23, 2011. On May 25, 2011 the ethic commission of the German lower house of parliament (Bundestag) will discuss about alternative proposals for a new law on the use of preimplantation genetic diagnosis (PGD). Preimplantation genetic diagnosis (Praeimplantationsdiagnostik) is a technique used to identify genetic defects in embryos created through in vitro fertilization (IVF) before pregnancy, which is banned by German legislation.

This week, a team from the University of California, Los Angeles claimed to have found several epigenetic marks—chemical modifications of DNA that don’t change the underlying sequence—that are associated with homosexuality in men. Postdoc Tuck Ngun presented the results yesterday at the American Society of Human Genetics 2015 conference. Nature News were among the first to break the story based on a press release issued by the conference organisersOthers quickly followed suit. “Have They Found The Gay Gene?” said the front page of Metro, a London paper, on Friday morning.

Meanwhile, the mood at the conference has been decidedly less complimentary, with several geneticists criticizing the methods presented in the talk, the validity of the results, and the coverage in the press.

Ngun’s study was based on 37 pairs of identical male twins who were discordant—that is, one twin in each pair was gay, while the other was straight—and 10 pairs who were both gay. He analysed 140,000 regions in the genomes of the twins and looked for methylation marks—chemical Post-It notes that dictate when and where genes are activated. He whittled these down to around 6,000 regions of interest, and then built a computer model that would use data from these regions to classify people based on their sexual orientation.

The best model used just five of the methylation marks, and correctly classified the twins 67 percent of the time. “To our knowledge, this is the first example of a biomarker-based predictive model for sexual orientation,” Ngun wrote in his abstract.

The problems begin with the size of the study, which is tiny. The field of epigenetics is littered with the corpses of statistically underpowered studies like these, which simply lack the numbers to produce reliable, reproducible results.

Unfortunately, the problems don’t end there. The team split their group into two: a “training set” whose data they used to build their algorithm, and a “testing set”, whose data they used to verify it. That’s standard and good practice—exactly what they should have done. But splitting the sample means that the study goes from underpowered to really underpowered.

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There’s also another, larger issue. As far as could be judged from the unpublished results presented in the talk, the team used their training set to build several models for classifying their twins, and eventually chose the one with the greatest accuracy when applied to the testing set. That’s a problem because in research like this, there has to be a strict firewall between the training and testing sets; the team broke that firewall by essentially using the testing set to optimise their algorithms.

If you use this strategy, chances are you will find a positive result through random chance alone. Chances are some combination of methylation marks out of the original 6,000 will be significantly linked to sexual orientation, whether they genuinely affect sexual orientation or not. This is a well-known statistical problem that can be at least partly countered by running what’s called a correction for multiple testing. The team didn’t do that. (In an email to The Atlantic, Ngun denies that such a correction was necessary.)And, “like everyone else in the history of epigenetics studies they could not resist trying to interpret the findings mechanistically,” wrote John Greally from the Albert Einstein College of Medicine in a blog post. By which he means: they gave the results an imprimatur of plausibility by noting the roles of the genes affected by the five epi-marks. One is involved in controlling immune genes that have been linked to sexual attraction. Another is involved in moving molecules along neurons. Could epi-marks on these genes influence someone’s sexual attraction? Maybe. It’s also plausible that someone’s sexual orientation influences epi-marks on these genes. Correlation, after all, does not imply causation.

So, ultimately, what we have is an underpowered fishing expedition that used inappropriate statistics and that snagged results which may be false positives. Epigenetics marks may well be involved in sexual orientation. But this study, despite its claims, does not prove that and, as designed, could not have.

In a response to Greally’s post, Ngun admitted that the study was underpowered. “The reality is that we had basically no funding,” he said. “The sample size was not what we wanted. But do I hold out for some impossible ideal or do I work with what I have? I chose the latter.” He also told Nature News that he plans to “replicate the study in a different group of twins and also determine whether the same marks are more common in gay men than in straight men in a large and diverse population.”Great. Replication and verification are the cornerstones of science. But to replicate and verify, you need a sturdy preliminary finding upon which to build and expand—and that’s not the case here. It may seem like the noble choice to work with what you’ve got. But when what you’ve got are the makings of a fatally weak study, of the kind well known to cause problems in a field, it really is an option—perhaps the best option—to not do it at all. (The same could be said for journalists outside the conference choosing to cover the study based on a press release.)As Greally wrote in his post: “It’s not personal about [Ngun] or his colleagues, but we can no longer allow poor epigenetics studies to be given credibility if this field is to survive. By ‘poor,’ I mean uninterpretable.”

“This is only representative of the broader literature,” he told me. “The problems in the field are systematic. We need to change how epigenomics research is performed throughout the community.”

Complete Article HERE!

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Putting A Ring On It

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Name: William
Gender:
Age: 30
Location: UK
Hi There
I am new to this scene, and I have very little experience in anal sex and I am seeking your help and advice. I am a top but I have a problem keeping my dick hard or staying hard during anal sex. I find it harder to fuck an ass compared to fucking a pussy. Here is the problem: Once I get my dick hard, put on a condom and start fucking, my dick sometimes goes soft on me. Is that normal? How can I keep my dick hard long enough in the ass to enjoy the fuck? Sometimes even when my dick is hard, I find it hard to penetrate an ass. I use lube, so what am I doing wrong? People in gay porn can fuck and fuck like there is no tomorrow. I want to enjoy anal sex too!! Any advice? Please let me know if there is anything I can do to improve in this area?

Boy, you’re in luck, William! One of my most popular tutorials, Finessing That Ass Fuck — A Tutorial For a Top, is waiting for you.  Check it out! It will answer a lot of the questions you have about butt fucking. You should also know that this is the companion piece to my tutorial for ass fuckin’ bottoms handsomely titled: Liberating The B.O.B. Within. Don’t know what a BOB is? No to worry, all will be explained.

gettin it from behindBut before you disappear to do your homework, I’d like to address one of the specific issues you raise, about keeping your dick hard while fucking. You are right to point out that fucking an ass (male or female) is different from fucking a pussy. But regardless of what hole you’re invading, a nice hard stiffy is essential.

Are you familiar with a cockring, William? If not, I suggest you acquaint yourself with these amazing low-tech wonders. Here’s what you should do. Mozie on over to the Dr Dick’s Sex Toy Reviews site and search for my tutorial, Cockring Crash Course. (The search function in the sidebar will assist you.) Prepare yourself to be sorely amazed at the variety and functionality of these little devils.

Cock rings can create larger, firmer erections. Since blood flow enters your dick through arteries deep inside your dick, and leaves it through the veins near the surface of your tool; wearing a cock ring can help to keep more blood inside your dick shaft. And as all you rocket scientists know, blood is what causes erections in the first place. Also some men claim that wearing a cock ring intensifies their orgasm.armour up04

And while you’re on the sex toy review site, use the CATEGORY pull-down menu in the sidebar and look for cockrings. You’ll find it under the last heading, Sexual Enrichment. This will bring up all the cockrings we reviewed, and there’s a load of ‘em, don’t cha know.

I recommend the flexible and/or adjustable cockrings. These are generally made of stretchable rubber or leather. For the more daring there are the metal variety. These may look pretty, but they can be a bitch to put on and to take off. Here’s how ya do it.

  1. Pull your ball sack through the ring first.
  2. Follow this by popping each of your balls through the ring one at a time.
  3. Now bend your cock down and pull it through the ring.

As you can see, putting on one of these little buggers before you have a raging hardon is gonna make it a whole lot easier. To take the cock ring off, simply reverse these steps, pushing your flaccid cock back through the ring first, followed by each of your balls and finally your ball sack.

It’s absolutely essential that you not wear an inflexible (metal) ring for longer than a couple hours. Make sure you don’t buy one that is too small either. If your dick is turning an angry red or worse, purple, or it is cold to the touch, you’re in trouble. Take that ring off immediately. If you don’t you will risk serious injury to your precious johnson. Remember people, play smart with all your toys!

Good luck

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Sexual Frustration Reigns

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Hello Dr. Dick

First time question to you. I’m sure you’ve probably heard this one a million times, but I could use some advice 🙂

I married my best friend. Sex has never been frequent or great. Most of the time he finishes in less than five minutes of penetration and I rarely if ever get to orgasm. The first and last time I think I did have an orgasm I think was the day we conceived our little girl.

He’s a great guy in all other aspects, but when it comes to the bedroom, it doesn’t happen. I’ve tried seducing him (which he responds to eagerly, finishes and then rolls over and goes to sleep), tried asking if we could try different things (different has ended up being one of two positions – missionary and woman on top – he does not like and will not do anything else). He also does not want to and won’t do stimulation with his hands or anything else for that matter. He also does not like or want toys in the bedroom, for him or me.

Any ideas on how I can convert him into a wife pleaser? I’m at my wits end. Last time I seduced him to get some “cock” in me was two months ago and needless to say I didn’t get any satisfaction. For the first time though I took care of things myself and at least I slept without really resenting him 🙂

I’ve been trying to not care, but I’ve found out I’m a very passionate woman who only gets more passionate with time… and with those needs not being met, I’m wondering if it’s the end? Can people be happy without sex? I haven’t found a way to yet but if you know of something, please let me know.

Anyway, if you have a chance to respond to my ramblings it would be appreciated… even if you have some insight into his actions/non-actions it would be greatly appreciated.

Coral

You’re right; I have heard this a million times.

sexual frustrationI’m gonna spare you the niceties and get right t the point, Coral. Your husband is clearly not up to the task of being your lover. His behaviors and his disinterest in finding a solution to the problem you have together tells me that he is a selfish lout. And how in the world can he be your best friend. Best friends don’t behave like this.

Let me put it to you another way. If you were writing to me to tell me that your husband hordes all the food in the house to himself. That he has you feed him till he is satisfied, but offers you only crumbs to sustain you. And that he won’t even negotiate you getting the food you need to survive and sustain yourself. What do you think I would say about that?

I suppose you see where I’m going with that, right? Listen, you oughtn’t be beggin’ for shit that is rightfully yours.

I have one real simple premise that I live by. And that is, each of us has a right to a happy, healthy, integrated sex life. If there is something that is getting in the way of achieving that, whatever it might be, it is a problem that needs to be addressed immediately.

As far as relationships go, I am of the mind that we ought, first and foremost, work to honor our commitments of fidelity and mutual support. Are there ways that these two moral principles — a right to a healthy sex life and one’s relationship commitments — can coexist when one’s relationship excludes the possibility of happy sexual expression? Yes, I believe there are. And many couples achieve this balance, because they have an overriding love and concern for one another.

Now the facts — not all loving relationship have a sexual component. Many, for one reason or another, simply don’t. But if a partner is unwilling to provide sexual satisfaction to his/her partner and he won’t even begin negotiate an amicable solution or other accommodations then, I believe, this a form of sexual abuse.factors-of-sexual-dissatisfaction

If what you report about your husband’s distaste for anything sexually adventurous is accurate, then you have a very hard row to hoe. (BTW,are mutually enjoyed sex toys in the bedroom all that adventurous these days?) Trying to negotiate a satisfactory solution to a problem is all the more difficult when your partner is opposed to even discussing the issue. Here’s what I suggest. Have a frank talk with the bonehead. Tell him, in no uncertain terms, that he has first right of refusal to you and your long-suffering naughty bits. If he isn’t interested in keeping you sexually satisfied, that means the door is open for you to get your groove on elsewhere. If he balks at that, stand your ground. Insist that he has just the two options of taking it or leaving it.

If this means the end of this relationship, as I suspect it might. Then have the spine to make a clean break of it. Because, if you don’t, then you are complicit in the abuse you are suffering.

Good luck

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Sexuality and Illness – Breaking the Silence

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(This is a Companion piece to yesterday’s posting. You’ll find yesterday’s posting HERE!)

By: Anne Katz PhD

Sexuality is much more than having sex even though many people think only about sexual intercourse when they hear the word. Sexuality is sometimes equated with intimacy, but in reality, sexuality is just one way that we connect with a spouse or partner we love (the true meaning of intimacy). Our sexuality encompasses how we see ourselves as men and women, who we are attracted to emotionally and physically, what turns us on (eroticism), our thoughts and fantasies, and yes, also what we do when we are sexually active, either alone or with a partner. Our sexuality is connected to our image of ourselves and it changes over the years as we age and face threats from illness and disability and, eventually, the end of life.seniors_men

Am I still a sexual being?

Illness can affect our sexuality in many different ways. The side effects of treatments for many diseases, including cancer, can cause fatigue. This is often identified as the number one obstacle to sexual activity. Other symptoms of illness such as pain can also affect our interest in being sexually active. But there are other perhaps more subtle issues that impact how we feel about ourselves and, in turn, our desire to be sexual with a partner or alone, or if we even see ourselves as sexual beings. Think about surgery that removes a part of the body that identifies us as female or male. Many women state that after breast cancer and removal of a breast (mastectomy), they no longer feel like a woman; this affects their willingness to appear naked in front of a partner. Medications taken to control advanced prostate cancer can decrease a man’s sexual desire. Men in this situation often forget to express their love for their partner in a physical way, no longer touching them, kissing them, or even holding hands. This loss of physical contact often results in two lonely people.  Humans have a basic need for touch; without that connection, we can end up feeling very lonely.

Just talk about it!

seniors_in_bedCommunication lies at the heart of sexuality. Talk to your partner about what you are feeling, how you feel about your body, and what you want in terms of touch. Ask how you can meet your partner’s needs for touch and affection. The most important thing you can do is to express yourself in words. Non-verbal communication and not talking are open to misinterpretation and can lead to hurt feelings. Our sexuality changes with age and time and illness; we may not feel the same way about our bodies or our partner’s body that we did 20, 30 or more years ago. That does not mean we feel worse – with age comes acceptance for many of us – but we do need to let go of what was, and look at what is and what is possible.

The role of health care providers

Health care providers should be asking about changes to sexuality because of illness or treatment, but they often don’t. They may be reluctant to bring up what they see as a sensitive topic and think that if it’s important to the patient, then he or she will ask about it. This is not good. Patients often wait to see if their health care provider asks about something and if they don’t, they think that it’s not important. This results in a silence and leaves the impression that sexuality is a taboo topic.senior intimacy02

Some health care providers are afraid that they won’t know the answer to a question about sexuality because nursing and medical schools don’t provide much in the way of education on this topic. And some health care providers appear to be too busy to talk about the more emotional aspects of living with illness. This is a great pity as sexuality is important to all of us – patients, partners, health care providers. It’s an important aspect of quality of life from adolescence to old age, in health and at the end of life when touch and love are so important.

Ask for a referral

If you want to talk about this, just do it! Tell your health care provider that you want to talk about changes in your body or your relationship or your sex life! Ask for a referral to a counselor or sexuality counselor or therapist or social worker. It may take a bit of work to get the help you need, but there is help.

Complete Article HERE!

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Sexuality at the End of Life

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By Anne Katz RN, PhD

In the terminal stages of the cancer trajectory, sexuality is often regarded as not important by health care providers. The need or ability to participate in sexual activity may wane in the terminal stages of illness, but the need for touch, intimacy, and how one views oneself don’t necessarily wane in tandem. Individuals may in fact suffer from the absence of loving and intimate touch in the final months, weeks, or days of life.head:heart

It is often assumed that when life nears its end, individuals and couples are not concerned about sexual issues and so this is not talked about. This attitude is borne out by the paucity of information about this topic.

Communicating About Sexuality with the Terminally Ill

Attitudes of health care professionals may act as a barrier to the discussion and assessment of sexuality at the end of life.

  • We bring to our practice a set of attitudes, beliefs and knowledge that we assume applies equally to our patients.
  • We may also be uncomfortable with talking about sexuality with patients or with the idea that very ill patients and/or their partners may have sexual needs at this time.
  • Our experience during our training and practice may lead us to believe that patients at the end of life are not interested in what we commonly perceive as sexual. How often do we see a patient and their partner in bed together or in an intimate embrace?
  • We may never have seen this because the circumstances of hospitals and even hospice may be such that privacy for the couple can never be assured and so couples do not attempt to lie together.

intimacy-320x320For the patient who remains at home during the final stages of illness the scenario is not that different. Often the patient is moved to a central location, such as a family or living room in the house and no longer has privacy.

  • While this may be more convenient for providing care, it precludes the expression of sexuality, as the patient is always in view.
  • Professional and volunteer helpers are frequently in the house and there may never be a time when the patient is alone or alone with his/her partner, and so is not afforded an opportunity for sexual expression.

Health care providers may not ever talk about sexual functioning at the end of life, assuming that this does not matter at this stage of the illness trajectory.

  • This sends a very clear message to the patient and his/her partner that this is something that is either taboo or of no importance. This in turn makes it more difficult for the patient and/or partner to ask questions or bring up the topic if they think that the subject is not to be talked about.

Sexual Functioning At The End Of Life

Factors affecting sexual functioning at the end of life are essentially the same as those affecting the individual with cancer at any stage of the disease trajectory. These include:go deeper

  • Psychosocial issues such as change in roles, changes in body- and self-image, depression, anxiety, and poor communication.
  • Side effects of treatment may also alter sexual functioning; fatigue, nausea, pain, edema and scarring all play a role in how the patient feels and sees him/herself and how the partner views the patient.
  • Fear of pain may be a major factor in the cessation of sexual activity; the partner may be equally fearful of hurting the patient.

The needs of the couple

Couples may find that in the final stages of illness, emotional connection to the loved one becomes an important part of sexual expression. Verbal communication and physical touching that is non-genital may take the place of previous sexual activity.

  • Many people note that the cessation of sexual activity is one of the many losses that result from the illness, and this has a negative impact on quality of life.
  • Some partners may find it difficult to be sexual when they have taken on much of the day-to-day care of the patient and see their role as caregiver rather than lover.
  • The physical and emotional toll of providing care may be exhausting and may impact on the desire for sexual contact.
  • In addition, some partners find that as the end nears for the ill partner, they need to begin to distance themselves. Part of this may be to avoid intimate touch. This is not wrong but can make the partner feel guilty and more liable to avoid physical interactions.

Addressing sexual needs

senior intimacyCouples may need to be given permission to touch each other at this stage of the illness and health care providers may need to consciously address the physical and attitudinal barriers that prevent this from happening.

  • Privacy issues need to be dealt with. This includes encouraging patients to close their door when private time is desired and having all levels of staff respect this. A sign on the door indicating that the patient is not to be disturbed should be enough to prevent staff from walking in and all staff and visitors should abide by this.
  • Partners should be given explicit permission to lie with the patient in the bed. In an ideal world, double beds could be provided but there are obvious challenges to this in terms of moving beds into and out of rooms, and challenges also for staff who may need to move or turn patients. Kissing, stroking, massaging, and holding the patient is unlikely to cause physical harm and may actually facilitate relaxation and decrease pain.
  • The partner may also be encouraged to participate in the routine care of the patient. Assisting in bathing and applying body lotion may be a non-threatening way of encouraging touch when there is fear of hurting the patient.

Specific strategies for couples who want to continue their usual sexual activities can be suggested depending on what physical or emotional barriers exist. Giving a patient permission to think about their self as sexual in the face of terminal illness is the first step. Offering the patient/couple the opportunity to discuss sexual concerns or needs validates their feelings and may normalize their experience, which in itself may bring comfort.

More specific strategies for symptoms include the following suggestions. senior lesbians

  • Timing of analgesia may need to altered to maximize pain relief and avoid sedation when the couple wants to be sexual. Narcotics, however, can interfere with arousal which may be counterproductive.
  • Fatigue is a common experience in the end stages of cancer and couples/individuals can be encouraged to set realistic goals for what is possible, and to try to use the time of day when they are most rested to be sexual either alone or with their partner.
  • Using a bronchodilator or inhaler before sexual activity may be helpful for patients who are short of breath. Using additional pillows or wedges will allow the patient to be more upright and make breathing easier.
  • Couples may find information about alternative positions for sexual activity very useful.
  • Incontinence or the presence of an indwelling catheter may represent a loss of control and dignity and may be seen as an insurmountable barrier to genital touching.

footprints-leftIt is important to emphasize that there is no right or wrong way of being sexual in the face of terminal illness; whatever the couple or individual chooses to do is appropriate and right for them. It is also not uncommon for couples to find that impending death draws them much closer and they are able to express themselves in ways that they had not for many years.

Complete Article HERE!

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