The other day, I overheard a couple of college-age guys talking about what they thought was an ingenious method for never failing a breathalyzer test again when stopped by police on suspicion of drunk driving: ingesting alcohol anally instead of orally—specifically, by inserting vodka-soaked tampons into their rear ends (actually, one guy suggested vodka, but the other guy said he’d prefer a tequila tampon. I suspect your anus wouldn’t know the difference, though). That way, according to their logic, you won’t smell like booze or breathe it out. Upon hearing this, my first thought was that the best way to avoid failing a breathalyzer test is simply to not drink and drive in the first place and maybe download the app for Uber or Lyft instead. My second thought was one of concern because these guys actually sounded serious about trying it. So, does anyone actually do this? And what kind of effects would this have on the body?Read More
Every Friday on the blog, I answer people’s questions about sex, love, and relationships. This week’s question comes from a reader who wanted to know the following:
“Is marijuana an aphrodisiac? And can it make a guy last longer in bed?”Read More
One of the most common questions I receive about sexual orientation concerns the percentage of the population that is gay, lesbian, or bisexual. People seem to have wildly different ideas about what the answer is, so I created the infographic below to highlight the difference between what people think and what the research actually says.Read More
In the book A Billion Wicked Thoughts, neuroscientists Ogi Ogas and Sai Gaddam analyzed the contents of over a billion searches on some of the most popular porn sites. Among their many fascinating findings was that the most popular search term on Pornhub (one of the most heavily visited tube sites in the entire world) was “mom.” That’s right. Mom.
So how do we explain the appeal of the MILF?Read More
Premenstrual syndrome (or PMS as it is more commonly known) is a catchall term for any unpleasant physical and psychological symptoms a woman might experience just prior to getting her period. Research suggests that as many as 80% of women experience PMS; however, the nature and severity of the symptoms varies dramatically across individuals . On the surface, PMS might not appear to be an adaptive trait, especially considering that, at least for a very small percentage of women, the symptoms are so severe as to become debilitating (in which case it may be referred to as premenstrual dysphoric disorder, or PMDD). But if PMS is so widespread, is it possible that perhaps it came to exist for some evolutionary reason? That’s what Dr. Michael Gillings argues in a controversial new paper just published in Evolutionary Applications .Read More
Every Friday on the blog, I answer people’s questions about sex, love, and relationships. This week’s question comes from a reader who wanted to know more about the topic of bisexuality:
“I have always heard that there are more bi females than there are bi males. Is this true and, if so, why?”
Great questions! As for whether there are more bisexual females than males, the answer depends what you mean by “bisexual.”Read More
Sixty-one years ago today (August 20, 1953), the media first reported on the findings of Alfred Kinsey's classic book Sexual Behavior in the Human Female. It was the first book of its kind to explore women's sexual attitudes and behaviors from a scientific perspective. While this book initially came as quite a shock to the world and was deemed "obscene" by many, we now look back on it now as one of the most important publications ever on human sexuality because it debunked so many myths and revealed that women are far more sexual than most had previously assumed. For example, Kinsey found that women were pleasuring themselves, they were having sex before marriage, and they were even engaging in same-sex behavior. It turns out that men aren't the only ones with sexual needs and desires. Who knew, right?Read More
What is it that determines who we are sexually attracted to? This is a surprisingly complex question to answer because attractiveness appears to depend upon a number of factors. Some of these are biological, others are psychological, and yet others have to do with our social environments. Below are ten of the most interesting findings scientists have documented when it comes to attraction.Read More
Every Friday on the blog, I answer people’s questions about sex, love, and relationships. This week’s question comes from a male reader who wanted to know more about the topic of anal sex:
“My girlfriend and I both really want to try anal sex, but every time we do, we stop almost immediately because she says it’s too painful. Are we doing something wrong? Is there anything we can try to make it pleasurable instead of painful for her?Read More
Most of us think of sperm as being competitive by nature, with each sperm cell trying to “swim” just a little faster than the others in order to reach the egg first. However, new research out of Harvard suggests that, at least in some species, there isn’t a constant rivalry en route to the egg. In fact, sometimes sperm actually appear to help each other by cooperating and forming groups while they travel.Read More
Almost everyone has heard the phrase “nice guys finish last” before. But is there any truth to it? According to a new set of studies published in Personality and Social Psychology Bulletin, being a "nice" guy does not seem to enhance your sexual desirability to women, at least in the context of initial attraction. In contrast, however, niceness appears to make women more appealing to men on first meeting.Read More
Nerve recently ran an article entitled "Meet The Modern-Day Masters Of Sex," in which they interviewed four sexologists about how they got into the field, what a typical day looks like for them, and how their work impacts their personal life. I am honored to have been included among the interviewees, along with Drs. Debby Herbenick, Kristen Mark, and Sarah Merrill. I know that many readers of this blog are aspiring sexologists who will find this to be a worthwhile read. But even if you aren't planning to study sex, this article does a nice job of highlighting just how diverse the nature of our work is and it debunks some common myths and misconceptions about sex and sexology.
Check out the full article on Nerve here.Read More
Did you know that the argonaut octopus has a flying, detachable penis? Or that female kangaroos have three vaginas? Or that female hyenas have clitorises so large that people often mistake them for penises? These are just some of the many incredible genital variations found in nature. To learn more, check out the short video below from our friends over at ASAP Thought.Read More
How do you feel about the first time you had sex? If you pose this question to a bunch of different people, you’re bound to find a range of responses. Some will remember it as incredibly positive and pleasurable, while others will say it was just awkward and uncomfortable. These emotional reactions to our first sexual experiences seem to be important too—studies have found that people who evaluate their virginity loss positively report having more satisfying sex lives than those who look back with anxiety and regret. However, a new study just published in the Journal of Sex Research reports some encouraging news: overall, first-time sex appears to be a more positive experience than it was a few decades ago.Read More
Every Friday on the blog, I answer people's questions about sex, love, and relationships. This week's question comes from a female reader who isn't satisfied with the amount and type of sex she is having with her husband:
“I have been married for 11 years. We are good together, but our sexual drive, what I want, how I want it, and how frequently I want it does not match. Talking to him has not helped. I get frustrated. I masturbate but don't feel satisfied. What can I do?”Read More
Are men really more likely to cheat than women? Are bigger breasts less sensitive than smaller breasts? Do guys reach their sexual peak early in life, while women reach theirs much later? In the video below, health researcher Dr. Aaron Carroll takes a look at some of the most commonly held beliefs about sex and separates fact from fiction with the help of a little science. Enjoy!Read More
Although many women and their sexual partners have taken some time to familiarize themselves with the vagina, the reality is that most of us don’t know as much as we should about this fascinating piece of anatomy. Below, I’ve compiled a list of ten of the most interesting facts about the vagina because, well, knowledge is power…and also pleasure.
1. Contrary to popular belief, women who have frequent sex do not develop “loose” vaginas. The vagina naturally becomes looser when women are sexually aroused in order to prepare for intercourse, but after sex, everything goes back to its normal state. What does cause vaginal looseness? Childbirth (sometimes) and older age. Click here to learn more.Read More
Every Friday on the blog, I answer people’s questions about sex, love, and relationships. This week’s question comes from a reader who wanted to know more about male and female pubic hair removal practices:
“When did it become common for each gender to begin shaving their pubic hair? I think it started with women, but now it seems just as common among men.”Read More
The penis is a fascinating piece of human anatomy; however, most of us know surprisingly little about it. So, I decided to compile a list of ten of the most interesting facts about the penis. Do you have other favorite penis facts? Feel free to add them in the comments section below.
1. Men usually get 4-5 erections per night, but it's not because they constantly dream about sex--rather, this is simply a natural occurrence as guys enter and exit different sleep cycles. This is why so men wake up with “morning wood.”Read More
Post-sex behaviors are highly variable from one person to the next. Some of us spoon or cuddle, some of us go right to sleep, and some of us get up to have a sandwich. But does what you do after sex matter? A new set of studies published in the Archives of Sexual Behavior suggests that, at least for people in relationships, it might. Specifically, the more that couples spoon and express affection after sex, the happier they tend to be.Read More