Exposure of hyperthermophilic archaeal Sulfolobus species to DNA damaging conditions induces cellular aggregation accompanied by high frequency genetic marker exchange.[32][33] Ajon et al.[33] hypothesized that this cellular aggregation enhances species-specific DNA repair by homologous recombination. DNA transfer in Sulfolobus may be an early form of sexual interaction similar to the more well-studied bacterial transformation systems that also involve species-specific DNA transfer leading to homologous recombinational repair of DNA damage.
Sexual dimorphisms in animals are often associated with sexual selection—the competition between individuals of one sex to mate with the opposite sex.[42] Antlers in male deer, for example, are used in combat between males to win reproductive access to female deer. In many cases the male of a species is larger than the female. Mammal species with extreme sexual size dimorphism tend to have highly polygynous mating systems—presumably due to selection for success in competition with other males—such as the elephant seals. Other examples demonstrate that it is the preference of females that drive sexual dimorphism, such as in the case of the stalk-eyed fly.[43]
Sex is a form of physical activity, and there are a number of studies linking exercise with better health. According to a statement from the American Heart Association, sexual activity is equivalent to moderate physical activities such as walking briskly or climbing two flights of stairs. The movements associated with sex can tighten and tone abdominal and pelvic muscles. For women, this improved muscle tone translates to better bladder control.

The female internal reproductive organs are the vagina, uterus, Fallopian tubes, and ovaries. The vagina is a sheath-like canal that extends from the vulva to the cervix. It receives the penis during intercourse and serves as a depository for sperm. The vagina is also the birth canal; it can expand to 10 cm (3.9 in) during labor and delivery. The vagina is located between the bladder and the rectum. The vagina is normally collapsed, but during sexual arousal it opens, lengthens, and produces lubrication to allow the insertion of the penis. The vagina has three layered walls; it is a self-cleaning organ with natural bacteria that suppress the production of yeast.[8][page needed] The G-spot, named after the Ernst Gräfenberg who first reported it in 1950, may be located in the front wall of the vagina and may cause orgasms. This area may vary in size and location between women; in some it may be absent. Various researchers dispute its structure or existence, or regard it as an extension of the clitoris.[39][40][41]


To the relief of many parents, educators, and clergy members who care about the health and well-being of young people, teens are launching their sex lives later. From 1991 to 2017, the Centers for Disease Control and Prevention’s Youth Risk Behavior Survey finds, the percentage of high-school students who’d had intercourse dropped from 54 to 40 percent. In other words, in the space of a generation, sex has gone from something most high-school students have experienced to something most haven’t. (And no, they aren’t having oral sex instead—that rate hasn’t changed much.)


Everybody says and writes that changing positions in sex is good, that knowing their different options will make your sexual life diversified and so on. But why, how and what advantages does it give? There are a few nuances and secrets that not many people know. Unfortunately, not many people talk and write about it that is why now we will have a good at it and as they say, we will make it loud and simple. Read more…


^ Sandfort, Theo G.M.; Ehrhardt, Anke A. (June 2004). "Sexual Health: A Useful Public Health Paradigm or a Moral Imperative?" (PDF). Archives of Sexual Behavior. Springer Science and Business Media B.V. 33 (3): 181–187. doi:10.1023/b:aseb.0000026618.16408.e0. PMID 15129037. Archived from the original (PDF) on 31 May 2014. Retrieved 3 November 2014.
Ferns mostly produce large diploid sporophytes with rhizomes, roots and leaves; and on fertile leaves called sporangium, spores are produced. The spores are released and germinate to produce short, thin gametophytes that are typically heart shaped, small and green in color. The gametophytes or thallus, produce both motile sperm in the antheridia and egg cells in separate archegonia. After rains or when dew deposits a film of water, the motile sperm are splashed away from the antheridia, which are normally produced on the top side of the thallus, and swim in the film of water to the archegonia where they fertilize the egg. To promote out crossing or cross fertilization the sperm are released before the eggs are receptive of the sperm, making it more likely that the sperm will fertilize the eggs of different thallus. A zygote is formed after fertilization, which grows into a new sporophytic plant. The condition of having separate sporephyte and gametophyte plants is called alternation of generations. Other plants with similar reproductive means include the Psilotum, Lycopodium, Selaginella and Equisetum.
This website contains information, links, images and videos of sexually explicit material (collectively, the “Sexually Explicit Material”). Do NOT continue if: (i) you are not at least 18 years of age or the age of majority in each and every jurisdiction in which you will or may view the Sexually Explicit Material, whichever is higher (the “Age of Majority”), (ii) such material offends you, or (iii) viewing the Sexually Explicit Material is not legal in each and every community where you choose to view it.
The film "On the Basis of Sex" is one pretty good auto bio type picture of one legal hero Ruth Bader Ginsburg(Felicity Jones) as she's a flame and light who fought for equality and equal rights for women. The film does good to trace Ruth's humble start of going thru law school and raising a family all while trying to challenge and change the system as in her era it was a male dominated world and females took a backseat. I for one enjoyed the film for it's historical background as I enjoy pictures of history and bio type stories of political and well known figures. So give the film a see if you want to see how a woman fought for change with passion and be educated about the past of a legal legend.

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Though attempts have been made to devise objective criteria of sexual attractiveness, and measure it as one of several bodily forms of capital asset (see erotic capital), a person's sexual attractiveness is to a large extent a subjective measure dependent on another person's interest, perception, and sexual orientation. For example, a gay or lesbian person would typically find a person of the same sex to be more attractive than one of the other sex. A bisexual person would find either sex to be attractive. In addition, there are asexual people, who usually do not experience sexual attraction for either sex, though they may have romantic attraction (homoromantic, biromantic or heteroromantic). Interpersonal attraction includes factors such as physical or psychological similarity, familiarity or possessing a preponderance of common or familiar features, similarity, complementarity, reciprocal liking, and reinforcement.[126]

As we chatted (over, obviously, wine), Iris despaired at the quality of her recent sexual interactions. “I had such bad sex yesterday, my God, it was so bad,” she said wearily. “He basically got it in and—” She banged a fist against her palm at a furious tempo. It was the first time she’d slept with this man, whom she had met on Tinder, and she wondered aloud whether she could coach him. She was doubtful, though; he was in his 30s—old enough, she thought, to know better.

“Bransfield was a sexual predator with lustful disposition toward adolescent males,” the 21-page complaint said. “After being placed in a position of trust by defendants, Bishop Bransfield sexually abused, molested, fondled and assaulted [the complainant] and other adolescent and ‘adult’ males by, through and during his employment as bishop with the Diocese of Wheeling-Charleston.”
The people that are saying the movie was boring probably aren't interested in court cases as that was a big part of the movie. After all RGB is an attorney! The movie is about how she was one of the first that fought for gender equality & won. The entire theater was applauding. If you are a fan, than you definitely should go see it.... but bring some tissue - the very end of the movie will give you the feels.
“Sexual health is a state of physical, emotional, mental and social well-being in relation to sexuality; it is not merely the absence of disease, dysfunction or infirmity. Sexual health requires a positive and respectful approach to sexuality and sexual relationships, as well as the possibility of having pleasurable and safe sexual experiences, free of coercion, discrimination and violence. For sexual health to be attained and maintained, the sexual rights of all persons must be respected, protected and fulfilled.”
Marriage 101, one of the most popular undergraduate classes at Northwestern University, was launched in 2001 by William M. Pinsof, a founding father of couples therapy, and Arthur Nielsen, a psychiatry professor. What if you could teach about love, sex, and marriage before people chose a partner, Pinsof and Nielsen wondered—before they developed bad habits? The class was meant to be a sort of preemptive strike against unhappy marriages. Under Alexandra Solomon, the psychology professor who took over the course six years ago, it has become, secondarily, a strike against what she sees as the romantic and sexual stunting of a generation. She assigns students to ask someone else out on a date, for example, something many have never done.

The very first kiss on film was between a Victorian couple seen in the Edison kinetoscope The May Irwin Kiss (1896) (aka The Kiss, or The Irwin-Rice Kiss in a filmed scene from the stage play The Widow Jones). This titillating short 20-second film, with a close-up of a kiss, was denounced as shocking and pornographic to early moviegoers and caused the Roman Catholic Church to call for censorship.
Yvonne Gardelle appeared naked as temptress demon-wife Lilith to Adam in a pantomimed Garden of Eden prologue sequence in The Tree of Knowledge (1920), directed by Cecil B. DeMille's brother William; press kit materials tauted: "An old legend says that the tempter in Eden was not a serpent, but a beautiful women, Lillith, the demon wife of Adam before Eve was created"
I'll never look at nature documentaries the same way. I'll never look at a French braid the same way. I may still be in love with Simon after five more book boyfriends. And still think Abby kills it as a language teacher, Nanny of the Year award, and best stepmother (that term just doesn't apply here though) ever. I loved to hate Simon's ex-wife. What a bitch! I loved how Simon interacted with her and how, when she thought she had all the ammunition, Simon couldn't help but smile out of bone-deep happiness, and his happiness got the ex square in the chest, far better than if he'd fought back. This story didn't have the razzle-dazzle that some of Blakely's books did, but it's not fair to compare this A+ title with those of hers that knocked it well over the park fence (Like Mr. O, which earned an A++), as all by itself, this stand-alone but wonderfully connected full-length contemporary romantic comedy absolutely shines.
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Many animals and some plants have differences between the male and female sexes in size and appearance, a phenomenon called sexual dimorphism. Sex differences in humans include, generally, a larger size and more body hair in men; women have breasts, wider hips, and a higher body fat percentage. In other species, the differences may be more extreme, such as differences in coloration or bodyweight.
“Sexual health is a state of physical, emotional, mental and social well-being in relation to sexuality; it is not merely the absence of disease, dysfunction or infirmity. Sexual health requires a positive and respectful approach to sexuality and sexual relationships, as well as the possibility of having pleasurable and safe sexual experiences, free of coercion, discrimination and violence. For sexual health to be attained and maintained, the sexual rights of all persons must be respected, protected and fulfilled.”
Over the course of many conversations with sex researchers, psychologists, economists, sociologists, therapists, sex educators, and young adults, I heard many other theories about what I have come to think of as the sex recession. I was told it might be a consequence of the hookup culture, of crushing economic pressures, of surging anxiety rates, of psychological frailty, of widespread antidepressant use, of streaming television, of environmental estrogens leaked by plastics, of dropping testosterone levels, of digital porn, of the vibrator’s golden age, of dating apps, of option paralysis, of helicopter parents, of careerism, of smartphones, of the news cycle, of information overload generally, of sleep deprivation, of obesity. Name a modern blight, and someone, somewhere, is ready to blame it for messing with the modern libido.
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Another similar film was Fatima’s Coochie-Coochie Dance (1896) a short nickelodeon kinetoscope/film of a gyrating belly dancer named Fatima (well-known for her dancing shows at the Columbia World's Exhibition in 1893). It became the first film in which a scene was censored - for her gyrating and moving pelvis - it was covered up by what appeared to be a white picket fence (a grid-like pattern of white lines).
When I called the anthropologist Helen Fisher, who studies love and sex and co-directs Match.com’s annual Singles in America survey of more than 5,000 unpartnered Americans, I could almost feel her nodding over the phone. “The data is that people are having less sex,” she said, with a hint of mischief. “I’m a Baby Boomer, and apparently in my day we were having a lot more sex than they are today!” She went on to explain that the survey has been probing the intimate details of people’s lives for eight years now. “Every year the whole Match company is rather staggered at how little sex Americans are having—including the Millennials.”
The link between constructed sexual meanings and racial ideologies has been studied. Sexual meanings are constructed to maintain racial-ethnic-national boundaries by denigration of "others" and regulation of sexual behavior within the group. According to Joane Nagel, "both adherence to and deviation from such approved behaviors, define and reinforce racial, ethnic, and nationalist regimes".[71][72] Scholars also study the ways in which colonialism has affected sexuality today and argue that due to racism and slavery it has been dramatically changed from the way it had previously been understood.[73] These changes to sexuality are argued to be largely effected by the enforcement of the gender binary and heteropatriarchy as tools of colonization on colonized communities as seen in nations such as India, Samoa, and the First Nations in the Americas, resulting in the deaths and erasure of non-western genders and sexualities. In the United States people of color face the effects of colonialism in different ways with stereotypes such as the Mammy, and Jezebel for Black women; lotus blossom, and dragon lady for Asian women; and the "spicy" Latina.[74]
On the other hand, most religious liberals define sexuality-related labels in terms of sexual attraction and self-identification.[77] They may also view same-sex activity as morally neutral and as legally acceptable as opposite-sex activity, unrelated to mental illness, genetically or environmentally caused (but not as the result of bad parenting), and fixed. They also tend to be more in favor of same-sex marriage.[78]
These shifts coincide with another major change: parents’ increased anxiety about their children’s educational and economic prospects. Among the affluent and educated, especially, this anxiety has led to big changes in what’s expected of teens. “It’s hard to work in sex when the baseball team practices at 6:30, school starts at 8:15, drama club meets at 4:15, the soup kitchen starts serving at 6, and, oh yeah, your screenplay needs completion,” said a man who was a couple of years out of college, thinking back on his high-school years. He added: “There’s immense pressure” from parents and other authority figures “to focus on the self, at the expense of relationships”—pressure, quite a few 20-somethings told me, that extends right on through college.
If hookups are your thing, Grindr and Tinder offer the prospect of casual sex within the hour. The phrase If something exists, there is porn of it used to be a clever internet meme; now it’s a truism. BDSM plays at the local multiplex—but why bother going? Sex is portrayed, often graphically and sometimes gorgeously, on prime-time cable. Sexting is, statistically speaking, normal.
These messages are echoed and amplified by a Salt Lake City–based nonprofit called Fight the New Drug—the “drug” being porn—which has delivered hundreds of presentations to schools and other organizations around the country, including, this spring, the Kansas City Royals. The website NoFap, an offshoot of a popular Reddit message board founded by a now-retired Google contractor, provides community members (“fapstronauts”) a program to quit “fapping”—masturbating. Further outside the mainstream, the far-right Proud Boys group has a “no wanks” policy, which prohibits masturbating more than once a month. The group’s founder, Gavin McInnes, who also co-founded Vice Media, has said that pornography and masturbation are making Millennials “not even want to pursue relationships.”
Once agricultural societies emerged, the sexual framework shifted in ways that persisted for many millennia in much of Asia, Africa, Europe, and parts of the Americas. One common characteristic new to these societies was the collective supervision of sexual behavior due to urbanization, and the growth of population and population density. Children would commonly witness parents having sex because many families shared the same sleeping quarters. Due to landownership, determination of children's paternity became important, and society and family life became patriarchal. These changes in sexual ideology were used to control female sexuality and to differentiate standards by gender. With these ideologies, sexual possessiveness and increases in jealousy emerged. With the domestication of animals, new opportunities for bestiality arose. Males mostly performed these types of sexual acts and many societies acquired firm rules against it. These acts also explain the many depictions of half-human, half-animal mythical creatures, and the sports of gods and goddesses with animals.[91] While retaining the precedents of earlier civilizations, each classical civilization established a somewhat distinctive approach to gender, artistic expression of sexual beauty, and to behaviors such as homosexuality. Some of these distinctions are portrayed in sex manuals, which were also common among civilizations in China, Greece, Rome, Persia, and India; each has its own sexual history.[91][page needed]
Outside of government, both sexes seem to be waging a war on the post-2008 new normal. — James Freeman, WSJ, "Gender, Likability and Opportunity," 7 Jan. 2019 Even if feminism, by definition, means political, economic, and social equality of the sexes—and who can’t get behind that?—the term has attached to it a stigma of chilliness, prudishness, humorlessness. — Lili Anolik, Harper's BAZAAR, "How Eve Babitz Is Becoming an Unlikely Icon for Millennial Women," 24 Jan. 2019 Most history-conscious people in America and across the world know, for instance, the story of the My Lai Massacre of March 1968, when U.S. troops murdered at least 504 Vietnamese people of all ages and both sexes. — Max Hastings, WSJ, "The Hidden Atrocities of the Vietnam War," 4 Oct. 2018 Forget xoxo as the new exclamation point—was the email sign-off the new sparring ground for the battle of the sexes? — Chloe Schama, Vogue, "“XOXO”: What Does Your Email Sign-Off Say About You?," 20 Sep. 2018 The gynandromorph, as it is known, has a mixture of male and female genes and expresses traits from both sexes. — Jason Daley, Smithsonian, "Rare Yellow Cardinal Spotted at Alabama Bird Feeder," 27 Feb. 2018 Christopher Kane is not put off by sex’s sorta-bad name. — Steff Yotka, Vogue, "The Joys of Sex, According to Christopher Kane," 26 Sep. 2018 This may be due in part to neurotransmitters acting differently in people of different sexes. — Nina Bahadur, SELF, "9 Facts to Know About Schizophrenia, Which Is Way Too Misunderstood," 15 Sep. 2018 The juvenile fish, whose sexes still have not been determined, were using all their energy in futile attempts to stay above the floor of their habitat. — Karin Brulliard, The Seattle Times, "To save fish that can’t swim, veterinarian made them tiny floaties," 4 Sep. 2018
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