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This Smartphone Case Will Apparently Save Your Sperm From Radiation Damage.

Men: if you carry your phone in your trouser pocket but you’re concerned about the state of your sperm, this phone case could be the most important purchase you ever make.

The genuine leather housing of this phone case from WaveWall has a special lining that can allegedly block electromagnetic radiation, protecting your little swimmers from damage – although there’s little to no evidence of there being any problem in the first place.

According to the WaveWall team, using the WaveWall “safeguards your reproductive health by reducing the mobile phone radiation your testicles absorb by more than 85%” as long as you put the case the right way around “with the flat side against your leg and the tab side facing outwards.”

Otherwise, you apparently just have a nice-looking phone case and millions of radiation-affected sperm.

The WaveWall also works like any other protective case, protecting your mobile from scratches and bumps.

Before you rush off to buy an extra-large WaveWall, there is still no hard evidence that radiation from phones, televisions or any other electrical technology can worsen your health.

By Morenike Adebayo for IFL Science.com

http://www.iflscience.com/technology/smartphone-case-apparently-will-save-your-sperm-radiation-damage

Weight Loss Surgeries Help Improve Couples’ Sex Life And Relationships: Study.

Weight loss surgery, one of the most effective ways to combat morbid obesity, may also contribute to an improved sex life, says a recent study. According to Mary Lisa Pories of East Carolina University, bariatric surgery starts a journey between couples that brings them closer together, allowing them to experience greater intimacy. Pories discusses her findings in Springer’s journal Obesity Surgery, stating that this post-surgical process not only unites couples, it ultimately determines the success of the surgery’s results.

Bariatric, or weight loss, surgery is a method used to combat obesity and lessen the health risks associated with being overweight. Once a patient undergoes one of the few types of bariatric surgery, overall quality of life, and self-confidence tends to improve along with health.

To examine how this new, positive body image affects relationships, Pories interviewed 10 couples with one partner who had undergone bariatric surgery. When asking them about their outlooks on postsurgical life, Pories claims all of her participants viewed recovery and lifestyle changes as a team effort; they saw their partner’s support as necessary to keeping them on track with their new routine. “All of the couples felt their post-operative success was due to a joint effort on the part of both members of the couple,” said Pories in a press release.

Pories found the couples tended to focus on the necessary adjustments they had to make as a result of their partner’s substantial weight loss, including adapting to a change in diet. Couples also reported that they both had more energy. When describing their emotional connection, couples said they experienced more positive moods and an increase in self-esteem. Because of this, the couples found that they were more affectionate and engaged more intimately with one another, along with being able to resolve conflict better. They even said their sexual relationships were not only improving, but becoming more enjoyable.

This is not the first study to find a relationship between improved sex life and weight loss. In a 2013 study published in JAMA Surgery, researchers examined how weight loss surgery affected the sexual appetites of women who had undergone the procedure. After examining 106 women who underwent different types of bariatric surgery, researchers found that two years after the operation, most women saw significant improvement in sexual functioning, as well as arousal, lubrication, and satisfaction.

Pories hopes her new study will illuminate how essential a partnership is to the weight loss journey, and plans to look at the post-operative experience of singles.

Sources: Pories M, Hodgson J, Rose M, et al. Following Bariatric Surgery: an Exploration of the Couples’ Experience. Obesity Surgery. 2015.

Sarwer DB, Spitzer JC, Wadden TA, et al. Changes in Sexual Functioning and Sex Hormone Levels in Women Following Bariatric Surgery. JAMA Surgery. 2013.

By Kristin Magaldi for Medical Daily.com

http://www.medicaldaily.com/weight-loss-surgeries-help-improve-couples-sex-life-and-relationships-study-336408

We Asked Three Doctors How Illegal Drugs Affect Your Sperm.

Photo via Flickr User Imagens Evangelicas

Life is full of hard truths. One of the hardest is that you can only party for so long before your body starts asking you nicely to please chill out, or you accumulate so many responsibilities that drinking five beers and popping a molly just isn’t wise anymore. And when you decide you’re ready for the ultimate responsibility, having a kid, you’ll have to hope your genetic material isn’t so damaged from shoving coke mixed with Ajax into random orifices that your offspring have to suffer serious medical problems.

But what if you knew how badly you’re screwing your body up before it’s too late? Not to get all Daren the Lion on you, but I asked two reproductive experts—Dr. Ricardo Yazigi of Shady Grove Fertility Center in Maryland and Dr. David Nudell, a Bay Area-based male reproductive urologist—plus Fernando Caudevilla (also known as Dr. X, the drug whisperer) to explain the way drug use can negatively impact sperm. The general consensus is that the use of just about every illicit drug causes damage to the testicles and prevents the creation of testosterone—the linchpin substance for the entire male reproductive system.

For the purposes of this piece, we leaned heavily on a 2012 study called “The Insults of Illicit Drug Use in Male Fertility” from the American Society of Andrology’s Journal of Andrology, which is available here.

Marijuana

According to the 2009 National Study on Drug Use and Health, marijuana has the highest usage rate of any illicit drug in the United States, which means you probably have all or some of these problems with your sperm.

The cannabinoid compounds in marijuana are actually synthesized by the human body, so our cells have natural receptors for them. If the cannabinoids latch onto cells in the testes or the sperm themselves, some unwanted side effects could occur and ruin your day. According to Dr. Yazigi:

“About 33 percent of chronic users will have low sperm counts. Binding of the active components and metabolites of marijuana to receptors on sperm themselves has also been shown to lead to decreasing motility rates. What is less clear are the effects of more occasional users—no good studies have been done but the prevailing thought is that while these men will have rapid recovery to their sperm function with briefer cessation in use, they should avoid use when trying to get pregnant as well.”

Cocaine

Coke is, of course, the legendary “boner killer,” in that it causes vasoconstriction (the narrowing of blood cells), which leads to erectile dysfunction. It’s difficult to pinpoint what else it does, because any studies done on human beings are going to be complicated by the fact that cocaine just makes you want to party more. I asked Dr. Yazigi why we don’t have more information on coke’s effects, and he responded that human tests aren’t pure “because most of the time there’s coexistence of the use of cocaine along with alcohol and cigarettes and other drugs, so the single cocaine users are almost a rarity.” Also, he reminded me that you can’t force a group of people to do cocaine and then reproduce. You know, ethically.

Animal studies have been done that conclude that there are receptors for coke in the testicles and sperm. “There’s abnormal anatomy of the testicular tissue. There’s degeneration of a number of cells,” Dr. Yazigi said. Dr. Nudell went a step further and said those animal trials revealed that there might be transmission of cocaine through the sperm to the female egg. “Effects of this phenomenon are not known but certainly could lead to early miscarriage.”

Opiates

For clarity’s sake, when discussing opiates, I mean heroin, oxycontin, vicodin, etc. Long term use of opiates can lead to issues with the reproductive system due to suppression of the hormone GnRH, which Dr. Nudell says, “is normally secreted by the hypothalamus (the organ that controls the pituitary gland.)” That means a decline in LH (luteinizing hormone) and FSH (follicle-stimulating hormone) secretion from the pituitary gland—a fancier way of saying the body doesn’t produce the sperm it needs to make a baby. There’s also evidence that opiate addiction can lead to fragmentation of DNA within sperm and can cause shoddy fertilization rates or miscarriage.

Methamphetamines

It almost goes without saying that if you are habitually using meth, reproducing should be low on your priority list. Fixing your teeth and paying your parents back all the money you stole from their retirement fund should take precedence. Also, stop wearing that goddamn beanie. It’s not 2006 anymore, and you are not Jesse Pinkman. You are a real person and you smell like a bucket full of wet pennies. Still, if you must crank out a kiddie, you can expect “direct damage to the seminiferous tubules,” which is the support system for the testis. Once again, that means lowered testosterone production. Plus, the sperm themselves can be harmed by vascular constriction and blood flow issues. Dr. X claimed that the “main problem of amphetamine and amphetamine derivatives is the risk of cardiovascular alterations (heart deformity) in offspring.”

LSD

What about conceiving a child… on acid!? Probably not a great plan, but no one really knows for sure. Dr. Nudell told me that “most studies of LSD do not show an effect on sperm. Many studies have been done to look for DNA changes in both non-sperm and sperm cells but have been inconclusive.” Dr. X included mushrooms and ketamine in his statement on LSD’s relative lack of effect on reproduction. In other words: Carry on, Blue Boy, but be wary.

MDMA/Ecstasy

If you’re lucky enough to get real MDMA and not some bunk shit from the guy behind the port-a-potty at Nocturnal Wonderland, you’re still going to have some issues with your semen. There’s not a ton of conclusive research done on MDMA, but Dr. Yazigi told me that it can screw up the production of testosterone, just like pretty much everything on this list. He said, “There may be sperm DNA damage, degeneration of the tissue within the testicles. Sperm motivity (the ability for the sperm to swim effectively toward the egg) is preserved, but the sperm count may be decreased.” That’s similar to cocaine, except, as he stated, “motivity is also decreased. Here it’s just the sperm numbers, the production of sperm in essence.”

That means the sperm still move around normally, but there just aren’t as many, which wrecks your chances of actually impregnating someone. As with meth, MDMA can lead to heart abnormalities in children.

If you’ve properly processed all of that information and still can’t kick your habit, but you want to give your sexual partner some quality sperm, Dr. Yazigi explained that it takes awhile to clear affected sperm from your system:

“So the theory was that if a man was exposed to testosterone and because of that reason, he had lost sperm, then you would expect that within three to six months, you will have normal spermatogenesis again. You’ll have normal sperm. The fact of the matter is that there’s a number of men for whom it may take a few years to go back to a normal sperm count.”

 

By Dave Schilling for Vice

http://www.vice.com/read/we-asked-three-doctors-what-drugs-do-to-your-sperm-915?utm_source=vicefbus

The Best Sex Positions To Check Your Partner For Cancer.

From the Cancer Sutra website: “This project exists to help save lives. (One tweak, thrust, moan, and pant at a time.” (Warning: ‘Toons of sex positions ahead!)

The Cancer Sutra is a project that reminds people to check themselves and their partners for signs of cancer. Because in many cases, the earlier you detect cancer, the easier it will be to treat.

The Cancer Sutra is exactly what it sounds like: Sex positions, but with silly tips about how you could multi-task and check your partner for breast, testicular, skin, or prostate cancer WHILE YOU’RE BONING.
NYC-based advertising agency The Bull-White House partnered with Stupid Cancer to create the Cancer Sutra. “We want to show that you can put across a serious message in a way that will bring joy,” Matthew Bull, of Bull-White House, tells BuzzFeed Life in an email.

This position is called The Nutty Professor. You can check your partner’s balls for testicular cancer using this saucy move.

From the picture caption: “As your lips find something to occupy themselves with, let your hand make its way to his testicles. But gentle, gentle; lest you turn his ecstatic moans into woeful groans.”

This is the Cat (or Matt) Scan. It’s a great position to eyeball your partner’s skin for any new and suspicious-looking moles.

Suspicious moles are a sign of skin cancer, FYI.

And this one’s called the Ultrabound Test. You can give your partner’s boobs a squeeze and a look-see to check for any unusual or suspicious signs of breast or skin cancer.

From the caption: “While we’re sure you rarely miss an opportunity to give her bosoms more than a fleeting glance, now’s your chance for a closer inspection.”

Big super-important caveat here: The Cancer Sutra is NOT giving you actual or legitimate medical advice.

For instance, doctors DON’T advise that people actually manually check themselves (or their partners) for prostate cancer (which is what’s going on in the above position, the Dr. Ben Dover) — that’s because doctors are much better able to know what’s going on by feel alone. And on a more serious note, prostate cancer screening in general is a fairly complicated topic, with risks and limitations. The American Cancer Society recommends that people who want to get screened for prostate cancer should talk about all sides of the issue with their personal doctors, to make a fully informed decision. More on this here.
THAT SAID. Doctors absolutely recommend that people perform skin self-exams and testicular self-exams, to monitor new suspicious looking moles, spots, lumps, and other things that shouldn’t be there. And it’s a good idea to be aware of what your breasts or chest look like and feel like, in case you DO feel a lump or see any weird or suspicious changes. That way you can get in to your doctor and get it checked out and treated ASAP.

Bottom line: Pay attention to your body. Inform yourself about what suspicious signs and symptoms might look like. And talk to your doctor about any and all of this if you see something that troubles you, or if you have any questions.

Carolyn Kylstra BuzzFeed Staff for BuzzFeed.com

http://www.buzzfeed.com/carolynkylstra/cancer-sutra

Rejoice! Science Says Sex Helps Humans Eliminate Genetic Mutations.

Congratulations! You now have another reason to have more sex.

A new study from the University of Montreal and Sainte-Justine University Hospital Research Centre has revealed that sex helps eliminate genetic mutations, according to the Daily Mail. In turn, humans are in a better position to avoid disease.

This is a very gradual process, in the sense that it occurs over generations. As humans combine their genetic material through sexual reproduction, their offspring become increasingly resilient to diseases. Simply put, procreation has allowed humans to evolve into a more superior species over time. So start making babies, people! Let’s create super-humans.

On a more serious note, one might interpret this as science sending us a subtle message that we are stronger the more diverse we are. With that said, the benefits of this aren’t immediate, and they’ll only be seen in future generations; you won’t be instantly more resilient to disease by having sex right now.

And as we all learned during that awkward health class in the eighth grade, sex can often lead to diseases if the proper precautions aren’t taken. So be smart, my friends. If you do practice safe sex, however, there are actually a lot of health benefits you can reap instantly. Here are five immediate benefits of some old fashioned sexual healing:

Sex helps relieve stress and is good for your mental health.

It’s easy to feel overwhelmed when life is full of anxiety-inducing activities. If you’re feeling stressed out, sex can be a healthy source of relief.

Considering stress is one of the leading causes of depression, sex is also good for your mental health. Researchers in Scotland found that when people had sex before stressful activities, such as speaking in public, they dealt with them much better. This is because having sex frequently helps lower your blood pressure, as noted by CBS News.

Sex helps you burn calories.

Let’s face it, jogging sucks. Have sex instead. Studies have shown that an hour of sex can help burn as many calories as a 30-minute run. On average, men burn around four calories a minute during sex while women burn three.

Sex is a great painkiller.

If you’ve got a terrible headache, skip the ibuprofen: Sex is a much better painkiller. Sex helps release endorphins, which are natural chemicals that assist in the alleviation of pain. Likewise, studies have shown people with migraines experienced improvements in symptoms by having sex.

Sex helps you get a good night’s rest.

Suffering from insomnia? Sex can help with that. Doctors claim that sex shortly before bedtime is one of the best ways to get a good night’s rest, as highlighted by the Telegraph.

Sex helps strengthen your immune system.

While we may have noted above that sex doesn’t immediately help eliminate the genetic mutations that lead to disease, it can still strengthen your immune system in the short run. Having sex releases oxytocin, which helps reduce cortisol levels, CNN notes. High cortisol levels are bad for your overall health and can increase the risk of illness.

In other words, go have some fantastic consensual sex, my friends. It’s good for your body and your mind, and we all deserve a little love in our lives.

By John Haltiwanger for Elite Daily.com

http://elitedaily.com/life/science-says-sex-helps-humans-eliminate-genetic-mutations/941366/

Sex on Demand: What’s it Worth?

With the advent of location based hookup and dating apps such as Tinder and Scruff, looking for love – whether for life or for the night, has never been easier. But, easier has its consequences.

One state that’s feeling the burn–literally and figuratively–of this modern brand of fast food sex is Rhode Island. According to their Department of Health, rates of sexually transmitted diseases are soaring, in part due to increased use of hookup apps.

Between 2013 and 2014–one year’s time–cases of syphilis increased 79 percent. HIV infections were up 33 percent and gonorrhea cases jumped 30 percent.

The state’s health department blamed “high-risk behaviors that have become more common in recent years,” including “using social media to arrange casual and often anonymous sexual encounters.

Brian Smith, Marketing Manager for PositiveSingles.com says, the increased rate of STD transmissions was a consideration when developing their sites mobile app since their members are already living with at least one STD. I’d be curious to know what other mobile apps are doing in response to the increased rates of STD transmissions. One would hope that the health and well being of their users factors into the equation.

These numbers represent one very small state in particular. Were we to look at major metropolitan areas I’d hazard to guess that the numbers could be even more shocking. Take for instance, Chicago, where I live. On any given day or night, I can open up Scruff or Grindr and find no fewer than 20 guys within a mile radius. With the possibility of sex a mere “hey what’s up” away, it’s no wonder STD rates are skyrocketing. So what’s a boy or girl in this new age of digital, insta-sex to do?

Communicate: Before you make arrangements to meet up, you need to ask your potential partner about their testing and sexual history. When was the last time they were tested? Did that include HIV and other STD’s? What’s your condom use like? Be sure to offer up your own information first: “I was tested for all STD’s, including HIV, two months ago. How about you?”.

If your partner isn’t forthright in answering questions about their testing history and condom usage, then that’s a red flag, and something that should make you take pause. As a general rule of thumb, I recommend all sexually active adults get tested for HIV and all other STD’s at least once a year, preferably every six months, and every three if you have multiple partners and don’t always use a condom.

Condoms: Condoms have been and remain one of the best ways to protect against HIV and many STD’s. If you don’t have a problem using condoms that’s great; keep up the good work. While some STD’s are transmitted via skin-to-skin contact (more on that in a minute), condoms are still an excellent way of protecting yourself against HIV, Chlamydia, and Gonorrhea. While they don’t fully protect you against Syphilis and Herpes, they do help lower the risk of transmission.

What’s that? You don’t like to use condoms? Me neither! When it comes down to it, most people don’t. If your condom use is spotty consider PReP and being on top.

PReP: An acronym standing for Pre-Exposure Prophylaxis (PReP), is a once-daily pill, that when taken correctly and consistently, can reduce the chance of acquiring HIV.

Look: Take a look at your partner’s genital area before engaging in sex. Yes, I know, this sounds weird, but it works. Do you notice any open sores in the genital region? How about discharge? You can milk your partner’s penis by grabbing it at the base, and pulling up the shaft towards the head. Again, sounds weird I know! However, if you notice any green or milky discharge you might want to call it quits on that particular hookup.

Resources:

To find an HIV/STD testing site near you: hivtest.org

For information on HIV and other STD’s: thebody.com

Already infected with HIV, Herpes, or another STD: positivesingles.com

BOTTOM LINE: Sex is, and should be fun. However, in your haste for a good time, it’s imperative that you stop and consider the actual risks that come with fast food sex. Just because it’s quick and easy, doesn’t mean it’s going to be good. Get yourself some fries instead. Or just be smart about it.

In health,

By Richard Cordova for Huffington Post. com

http://www.huffingtonpost.com/richard-cordova/sex-on-demand-whats-it-wo_b_7587898.html?ncid=fcbklnkushpmg00000050

Disclosure: I am a Safe Sex & HIV Prevention Expert for TheBody.com and a consultant for PositiveSingles.com. I’ve been HIV for over 13 years, and I plan on staying that way. Unless of course they find a cure, in which case, sign me up.

FDA Panel Backs Experimental Drug That Improves Women’s Sex Drives.

Government health officials who advise the Food and Drug Administration (FDA) have given the “female Viagra” drug their backing and recommended that the FDA approve it, but with safety restrictions and conditions attached.

The panel voted 18-6 in favor of the drug, called flibanserin, designed to boost the sexual desire of women who have lost their libido. It has so far been rejected twice by the FDA, once in 2010 and again in 2013, due to worries over side effects. But other groups claim that the real barrier to getting the pill approved is one of inherent sexism.

The main concern over the drug’s use (and the reason it’s been stalled for the past five years) is one of safety. The FDA claims that this is the real issue and not some underlying bias. They say that the side effects, such as dizziness, nausea and low blood pressure, simply outweigh any benefits derived from it. They highlight the fact that some women had to drop out of the trial due to such extreme negative effects.

Other women involved in the clinical trial of the “little pink pill” have, however, sung its praises. Some of these 11,000 women gave testimony at the hearing, explaining to the panel how psychologically and emotionally damaging it was to lose their sex drive, a condition called Hypoactive Sexual Desire Disorder (HSDD). They explained how the pill was able to give them relief, and in some cases saved their relationships.

The manufacturer of the drug, Sprout Pharmaceuticals, who bought it off the original developer after the first FDA rejection in 2010, says that the double-blind trials prove that flibanserin works better than a placebo in boosting women’s libidos, increasing the number of “sexually satisfying events,” and reducing depression associated with HSDD.

Although it has been dubbed the “female Viagra,” this is really a misnomer as it works in a completely different way. While Viagra works by simply increasing the blood flow, allowing men who already want to perform to stand to attention, flibanserin actually alters the brain’s chemistry. It influences the levels of dopamine and serotonin in the brain, hormones known to play a role in sexual desire and motivation.

Sprout claims that after 24 weeks, between 46–60% of women had experienced beneficial results from the drug. But some of the committee did point out that when the placebo effect is taken into account, the drug itself only has an effect on around 10% of women.

Some women’s advocacy groups argue that while there are around 26 different drugs available for and marketed at men with erectile dysfunction (ED), there is not a single drug so far aimed at women’s sexual needs. They say that the FDA has repeatedly rejected flibanserin due to an inherently sexist society. Other have pointed out, however, that there are not 26 different drugs, but 26 different brands, and in actual fact there are only around 6 separate drugs used to treat ED. But this is still 6 more than there are for women.

The committee concluded that as women currently have nothing on the market to help them with low sexual desire, the drug should be made available even if the benefits are moderate, so long as it carries proper warnings and the women are educated about the possible side effects. The FDA often follows advice given by the committee, though not always, and if they do give the green light to flibanserin, it should happen by the end of summer 2015.

By Josh L Davis IFL Science.com

http://www.iflscience.com/health-and-medicine/fda-panel-support-female-viagra-approval

New York Males Have More Aggressive Sperm.

One night of passion with a male from New York shortens your life expectancy, at least if you’re a worm of the species Caenorhabditis remanei. Although if you are, what are you doing reading this article? Go eat soil bacteria.

University of Oregon graduate student Colin Peden was conducting a study on nematode worms when he noticed something unexpected: mating with a male collected from New York halved the life expectancy of females, compared to those who died without experiencing male company. Being paired with worms from Germany or Ohio reduced female lifespans by 20%.

It wasn’t a matter of being exhausted by the hectic lifestyle or tiny apartments either. Just a day in the company of New York C remanei did most of the damage. Early deaths were not a consequence of great fecundity either; New Yorkers only fathered half as many offspring as their co-speciesists.

Head of Peden’s lab, Professor Patrick Phillips pondered: How have New York worms survived if they produce fewer offspring? Further experiments revealed the New Yorkers have super sperm, capable of out-competing that of other worms when each mated with the same female. New York females had shorter life expectancies, irrespective of mates.

“Despite their small size, nematode sperm is actually much larger than human sperm, and it is thought that the sperm from different males literally battle it out inside the female for access to her eggs,” says Phillips. “So a reasonable evolutionary explanation would be that these males make bad mates but highly successful fathers.”

The males also produce copulatory plugs that interfere with subsequent matings, although these are less likely to shorten the females’ lifespans.

In combination with a team at Bowdoin College, Maine, Phillips tested the related species Caenorhabditis elegans, the model organism that became the first multicellular organism to have its genome sequenced, reporting the findings in BMC Evolutionary Biology. Unlike C. remanei, C. elegans are normally hermaphrodites, although exclusive males exist.

The Bowdoin team blocked the gene for sperm production in C. elegans to make some female, and mated these with the rare males for 60 generations. They found that when the C. elegans were mating competitively in an environment without hermaphrodites their sperm quickly evolved to be larger and more aggressive. Females fertilized with this sperm died earlier than those that bred with males who did not have generations of competitive mating behind them.

Phillips says the researchers still don’t know how the males exert their detrimental effects. “It could be a change in the behavior of the males, or it could be something in the seminal fluid that they transfer during mating,” Phillips says. “We are following up on this work to figure that out.” It is also not known what makes the competition in New York fiercer than that in other locations, although no doubt many singles in the city would could confirm.

The observations are an extreme example of the evolutionary mechanism sexual conflict. In this case the females appear to be collateral damage in a war between males. In other cases harm is inflicted in order to change female behavior.

By Stephen Luntz for IFL Science.com

http://www.iflscience.com/plants-and-animals/new-york-males-have-aggressive-sperm

Does Period Sex Raise Your Risk of Endometriosis?

Can having sex while on my period cause endometriosis?

Nope, feel free to have at it any time of the month. Endometriosis is a disorder in which the tissue that normally lines only the inside of your uterus (the endometrium) grows outside of it—around the ovaries, bowel and other areas in your pelvis. The tissue grows thicker throughout your menstrual cycle, then breaks down and bleeds, just as it would inside your uterus. But because the blood and tissue have nowhere to go, that leads to (often intense) pain, irritation and eventually scar tissue.

While the exact cause of endometriosis is still unclear, there’s no evidence that period sex increases your risk. (In fact, one study linked sex during menses to a decreased risk.) The myth may stem from traditional Chinese medicine theories that having sex during your period disturbs the natural downward flow of menstrual blood, pushing it back into the uterus.

Western medicine has a term for a real phenomenon that sounds similar but isn’t caused by sex, nor is it the likely trigger of endometriosis: retrograde menstruation. Many experts think that all women experience some menstrual backup from time to time, usually without ill effects, but that women who develop endometriosis may have a hormonal or immune system problem that allows the tissue to become implanted.

By Dr. Roshini Raj for Health.com

Health‘s medical editor, Roshini Rajapaksa, MD, is assistant professor of medicine at the NYU School of Medicine and co-founder of Tula Skincare.

http://news.health.com/2015/05/21/does-period-sex-raise-your-risk-of-endometriosis/