{"id":16124,"date":"2023-09-12T14:10:12","date_gmt":"2023-09-12T12:10:12","guid":{"rendered":"https:\/\/najzdrowie.pl\/?p=16124"},"modified":"2026-02-21T23:47:27","modified_gmt":"2026-02-21T22:47:27","slug":"sex-interesting-facts-did-you-know-that","status":"publish","type":"post","link":"https:\/\/najzdrowie.pl\/en\/sex-interesting-facts-did-you-know-that\/","title":{"rendered":"Sex Fun Facts: Did You Know\u2026?"},"content":{"rendered":"<p class=\"has-normal-font-size\"><em>Discover 20 surprising fun facts about sex! We unveil myths and scientific truths, extraordinary customs, and health benefits that will change your perspective.<\/em><\/p>\n<h4 class=\"wp-block-heading\">Table of Contents<\/h4>\n<ul class=\"wp-block-list\">\n<li><a href=\"#most-surprising-facts-about-sex-\u2013-discover-the-unknown-side-of-intimacy\">Most surprising facts about sex \u2013 discover the unknown side of intimacy<\/a><\/li>\n<li><a href=\"#first-vibrators-and-the-history-of-toys-\u2013-from-taboo-to-everyday\">First vibrators and the history of toys \u2013 from taboo to everyday<\/a><\/li>\n<li><a href=\"#why-is-sex-healthy-scientific-evidence-confirms-benefits\">Why is sex healthy? Scientific evidence confirms the benefits<\/a><\/li>\n<li><a href=\"#unusual-sexual-practices-around-the-world-\u2013-customs-you-never-knew-existed\">Unusual sexual practices around the world \u2013 customs you never knew existed<\/a><\/li>\n<li><a href=\"#fun-facts-about-kissing-and-sexuality-\u2013-the-impact-of-senses-on-closeness\">Fun facts about kissing and sexuality \u2013 the impact of senses on closeness<\/a><\/li>\n<li><a href=\"#debunked-myths-and-little-known-facts-\u2013-what-else-don\"t-you-know-about-sex\">Debunked myths and little-known facts \u2013 what else don&#8217;t you know about sex?<\/a><\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\" id=\"most-surprising-facts-about-sex-\u2013-discover-the-unknown-side-of-intimacy\">Most surprising facts about sex \u2013 discover the unknown side of intimacy<\/h2>\n<p>Sex is one of the most fascinating aspects of human life, surrounded by countless myths, taboos, and misconceptions. Yet, research-based knowledge about intimacy can truly surprise. Scientists have discovered, for instance, that the human brain activates during orgasm in a similar way as when taking strong psychoactive substances \u2013 a surge in dopamine, oxytocin, and endorphins creates an euphoria close to being \u201chigh.\u201d Interestingly, this neurochemical cocktail not only improves well-being but can also act as a painkiller \u2013 some studies even suggest that orgasm relieves <a href=\"\/en\/?p=16448\" target=\"_blank\" rel=\"noreferrer noopener\">migraines<\/a> and chronic pain even more effectively than medication*. It&#8217;s also surprising that the average \u201csexual encounter\u201d doesn&#8217;t last as long as portrayed in movies \u2013 statistically, intercourse from penetration to ejaculation takes 5\u20137 minutes; idealized pop culture depictions build unrealistic expectations. Sexuality is incredibly diverse: in more than 70% of countries worldwide, non-standard sexual practices are common, and erotic preferences and fantasies are often much more widespread than you might think. Experts suggest that fantasies involving elements of BDSM or submission and dominance have concerned as much as 65% of people studied \u2013 debunking the myth that \u201cweird\u201d desires are rare. Biologically, there are also surprising differences in the ability to achieve orgasm: one-third of women declare they have never experienced sexual satisfaction during penetration, but regularly achieve it during other forms of stimulation. Meanwhile, scientists are uncovering more evidence for the existence of so-called female ejaculation \u2013 treated for decades as either a myth or anomaly.<\/p>\n<p>Not everyone knows that sex affects the functioning of the entire organism: regular intercourse may lower the risk of <a href=\"\/en\/?p=16447\" target=\"_blank\" rel=\"noreferrer noopener\">heart disease<\/a>, boost immunity, and improve sleep quality. Researchers also suggest that men who have sex at least once a week are even 50% less likely to suffer a heart attack compared to those who are less sexually active. The role of touch and kissing is equally interesting \u2013 it\u2019s not only foreplay, but also a way to build bonds and self-confidence in modern relationships. Sex can protect against depression by raising serotonin levels and motivating for physical activity. In some cultures, such as ancient India, sex was seen as a ritual and a path to spiritual fulfillment. Today, we return to the idea that physical closeness fosters relationships and can even translate into career success and longer life \u2013 according to a British study from 1997, sexually active men lived on average longer than their sexually inactive peers. Sex is also full of \u201cnature\u2019s secrets\u201d \u2013 during climax, the heart beats faster than during jogging, and the body burns about 100 calories per hour of foreplay. Among the most surprising facts are that female orgasms on average last twice as long as those of men and that some women can have several orgasms in a single sexual act \u2013 a phenomenon that, though fascinating, was underrated in scientific research for a long time. Communication is also key during sex: people who openly talk about their needs report higher satisfaction with their intimate lives. Meanwhile, people prone to stress or anxious about a partner\u2019s judgment enjoy intimacy less fully. Modern knowledge helps us understand the great complexity of sexuality and how much remains to be discovered on a physiological, cultural, and emotional level.<\/p>\n<h2 class=\"wp-block-heading\" id=\"first-vibrators-and-the-history-of-toys-\u2013-from-taboo-to-everyday\">First vibrators and the history of toys \u2013 from taboo to everyday<\/h2>\n<p>The history of erotic gadgets, especially vibrators, is much older and more fascinating than you might think. Contrary to popular belief, the first mentions of \u201cerotic aids\u201d date back to ancient civilizations. Archeologists have discovered stone and bone objects with phallic shapes from as far back as 28,000 years ago in Central Europe. In ancient Rome and Greece, such artifacts not only served sexual purposes but also religious and ritual ones \u2013 phallic symbols were seen as talismans, bringing fertility or protection from harm. Approaches toward sexuality and sex toys have evolved with changing customs over the centuries. In the Middle Ages, growing taboos regarding pleasure saw all erotic artifacts being hidden or associated with sin. However, as early as the 18th and 19th centuries, during Victorian England, medicine smuggled the first mechanical \u201cmachines for treating hysteria\u201d into everyday life, then a commonly diagnosed \u201cfemale ailment.\u201d Attitudes toward female sexuality were far from today\u2019s \u2013 pleasure was officially denied, while doctors performed pelvic massages to induce \u201chysterical paroxysms\u201d to relieve symptoms. The modern <a href=\"\/en\/?p=16426\" target=\"_blank\" rel=\"noreferrer noopener\">vibrator<\/a> has its roots in this practice, invented in the 1880s as a medical device.<\/p>\n<p>The first patent for an electric vibrator was granted to British physician Joseph Mortimer Granville in 1880 \u2013 his \u201cGranville\u2019s Hammer\u201d was designed for muscle massage but soon found another use. Vibrators quickly entered doctors\u2019 offices as a \u201ctherapy\u201d tool for hysteria symptoms, but by the late 19th and early 20th centuries, simplified versions were on sale for home use, advertised in women&#8217;s magazines alongside household appliances. They were among the first electric domestic devices that women could own in their bedrooms, alongside irons and vacuum cleaners, highlighting the product&#8217;s popularity. The situation began to change in the second half of the 20th century \u2013 the sexual revolution, rise of feminism and psychology, and more open societies moved erotic gadgets out of the shadows of taboo. Modern vibrators have evolved revolutionarily: from simple mechanical devices to today\u2019s advanced silicone gadgets featuring remote controls, waterproof design, dedicated mobile apps, and even music synchronization. Gadgets have become emblems of self-acceptance, sexual health, and freedom of choice \u2013 for both singles and couples. Their presence has normalized conversations about sexuality and needs, positively impacting relationships, self-worth, and open communication. Today\u2019s statistics show gadget use is no longer a source of shame \u2013 the sex-tech industry is booming, and many people see use of vibrators and other toys as part of caring for their well-being and sexual health. Popularity of clitoral vibrators, G-spot massagers, and even anal gadgets shows that sexuality is becoming an increasingly less taboo part of life, while technology innovations go hand in hand with evolving societal norms and expectations.<\/p>\n<h2 class=\"wp-block-heading\" id=\"why-is-sex-healthy-scientific-evidence-confirms-benefits\">Why is sex healthy? Scientific evidence confirms the benefits<\/h2>\n<p>Sex has long been seen not only as a source of pleasure but also as an important aspect of physical and mental health. Studies carried out over recent decades confirm that regular sexual activity provides a host of documented health benefits for both body and mind. One of the key effects of sex is support for the cardiovascular system. Sexual activity is comparable to moderate physical activity\u2014an average sexual encounter burns 85 to 150 calories, which improves heart health and blood vessel elasticity. In addition to burning calories, regular sex has been shown to lower blood pressure and the stress hormone cortisol, which, when chronically elevated, is linked to many modern diseases such as obesity, diabetes, or <a href=\"\/en\/?p=16499\" target=\"_blank\" rel=\"noreferrer noopener\">depression<\/a>. Regular sex is also associated with fewer urogenital issues in men, including benign <a href=\"\/en\/?p=16480\" target=\"_blank\" rel=\"noreferrer noopener\">prostatic hyperplasia<\/a>, according to studies like those from Harvard Medical School. For women, sexual activity benefits vaginal lubrication, strengthens pelvic floor muscles, and may ease <a href=\"\/en\/?p=16428\" target=\"_blank\" rel=\"noreferrer noopener\">menopausal<\/a> symptoms and even menstrual cramps.<\/p>\n<p>The effect of sex on the immune system shouldn&#8217;t be overlooked \u2014 regular sexual activity boosts immunoglobulin A, a key antibody in the first line of defense against bacterial and viral infections. People who have sex once or twice a week show up to a 30% higher immunoglobulin A level than those who are less sexually active, which may mean fewer illnesses, lower <a href=\"\/en\/?p=16424\" target=\"_blank\" rel=\"noreferrer noopener\">cold<\/a> risk, and faster recovery. Sex\u2019s impact on the psyche is equally significant \u2013 oxytocin and endorphins released during intimacy improve mood, reduce anxiety and stress, increase happiness, and enhance <a href=\"\/en\/?p=16490\" target=\"_blank\" rel=\"noreferrer noopener\">sleep<\/a> quality. Touch and physical closeness stimulate skin receptors, lowering cortisol and activating the parasympathetic nervous system, leading to overall relaxation. Some studies show that people who regularly have sex are less likely to experience depression, are more resilient psychologically, and more satisfied with their lives. Additionally, sex releases the body&#8217;s natural painkillers \u2013 endorphins and enkephalins \u2013 so sexual activity may relieve tension headaches, migraines, and even joint pain. There\u2019s frequent reference to intense sexual experiences easing pain even better than standard meds, and this has been confirmed in many clinical studies.<\/p>\n<figure class=\"wp-block-image\"><a href=\"https:\/\/najzdrowie.pl\/en\/sex\/\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"800\" src=\"https:\/\/najzdrowie.pl\/wp-content\/uploads\/20_Ciekawostek_o_Seksie___Fakty__Mity_i_Naukowe_Dowody__Kt_re_Ci__Zaskocz__-1.jpg\" alt=\"impact of sex fun facts and scientific evidence on sexual health\" class=\"wp-image-12258\" srcset=\"https:\/\/najzdrowie.pl\/wp-content\/uploads\/20_Ciekawostek_o_Seksie___Fakty__Mity_i_Naukowe_Dowody__Kt_re_Ci__Zaskocz__-1.jpg 1200w, https:\/\/najzdrowie.pl\/wp-content\/uploads\/20_Ciekawostek_o_Seksie___Fakty__Mity_i_Naukowe_Dowody__Kt_re_Ci__Zaskocz__-1-300x200.jpg 300w, https:\/\/najzdrowie.pl\/wp-content\/uploads\/20_Ciekawostek_o_Seksie___Fakty__Mity_i_Naukowe_Dowody__Kt_re_Ci__Zaskocz__-1-1024x683.jpg 1024w, https:\/\/najzdrowie.pl\/wp-content\/uploads\/20_Ciekawostek_o_Seksie___Fakty__Mity_i_Naukowe_Dowody__Kt_re_Ci__Zaskocz__-1-768x512.jpg 768w, https:\/\/najzdrowie.pl\/wp-content\/uploads\/20_Ciekawostek_o_Seksie___Fakty__Mity_i_Naukowe_Dowody__Kt_re_Ci__Zaskocz__-1-1170x780.jpg 1170w, https:\/\/najzdrowie.pl\/wp-content\/uploads\/20_Ciekawostek_o_Seksie___Fakty__Mity_i_Naukowe_Dowody__Kt_re_Ci__Zaskocz__-1-585x390.jpg 585w, https:\/\/najzdrowie.pl\/wp-content\/uploads\/20_Ciekawostek_o_Seksie___Fakty__Mity_i_Naukowe_Dowody__Kt_re_Ci__Zaskocz__-1-263x175.jpg 263w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/a><\/figure>\n<p>Beyond clear physical and mental benefits, regular sex also supports healthy relationships, strengthening bonds between partners and improving the quality of emotional life. Sex, as a form of exchanging intimacy and \u201cconversation of bodies,\u201d helps build trust and facilitates honest expression of needs, paving the way for better everyday communication. The American Psychological Association points out that couples with satisfying sex lives are more stable, less crisis-prone, and overcome conflicts faster. Sex also affects self-esteem \u2013 sexually active people feel more attractive, confident, and possess greater self-worth. Studies on longevity are significant as well: long-term social observations suggest that people with regular sex lives live longer than those who abstain. Through all these benefits \u2013 for the heart, immunity, and overall mental well-being \u2013 sex helps protect against neurodegenerative diseases and even reduces the risk of <a href=\"\/en\/?p=16467\" target=\"_blank\" rel=\"noreferrer noopener\">stroke<\/a> and heart attack. It\u2019s also important to note that a good sex life can help relieve insomnia symptoms, boosting serotonin and prolactin production that affect sleep depth and quality. Scientists emphasize that sex benefits not only couples, but also singles, who, through conscious self-pleasure, can experience the same healthful orgasm and body stimulation effects. Sex and physical closeness play an essential role in healthcare prevention and are valuable for self-care at every stage of life.<\/p>\n<h2 class=\"wp-block-heading\" id=\"unusual-sexual-practices-around-the-world-\u2013-customs-you-never-knew-existed\">Unusual sexual practices around the world \u2013 customs you never knew existed<\/h2>\n<p>Human sexuality has always been astoundingly diverse, and in different corners of the world, customs are practiced that may seem extraordinary or even controversial from a contemporary Western perspective. Every community has its own norms, rituals, and taboos associated with intimacy, rooted in religion, tradition, or social beliefs. For example, many traditional societies have initiation practices that play a crucial role in transitioning young people to sexual adulthood. In some Papua New Guinea tribes, such as Sambia, boys participate in complex coming-of-age rituals, involving years apart from women and symbolic practices intended to \u201ctransfer male energy.\u201d A completely different curiosity is found in Japanese Shunga tradition \u2013 erotic woodcuts that entertained, educated, inspired literature and art, and were a widely accepted medium for spreading sexual knowledge. In India, the famous Kama Sutra and Khajuraho temple reliefs illustrate a radically open approach to sexual positions, love-making techniques, and the celebration of the human body \u2013 which for centuries stood in contrast to European prudery. The modern world also knows of societies that have practiced, or still practice, polygamy or polyandry: for example, in Ladakh and Tibet in the Himalayas, a woman may have several husbands to prevent family property from being divided up for economic reasons.<\/p>\n<p>Unusual sexual customs aren\u2019t just cultural \u2013 they often play ritual, symbolic, or social roles. Ritual sexuality features at annual fertility festivals \u2013 such as Hadaka Matsuri in Japan, where crowds of naked men compete for luck and blessings, or Mahashivaratri in India, where offerings are made to the phallic symbol of the god Shiva. In some African countries, traditional dances and songs are performed to \u201cstrengthen\u201d fertility and ensure a happy marriage. Fascinating, often surprising, are so-called sex expeditions, practiced by some Malagasy communities or the Samburu of Kenya \u2013 young unmarried men freely engage in short-term sexual relationships as a socially accepted part of growing up. Unconventional practices like elaborate stimulation techniques, bondage, or role-play have existed in different forms since ancient times \u2013 think Roman orgies or Chinese erotic manuals recommending experimentation with touch and position. A uniquely intriguing phenomenon is \u201cnight crawling\u201d in regions of Nepal and Bhutan: young men secretly visit girls&#8217; homes at night, relationships sometimes resulting in pregnancy leading to marriage without social prejudice. In Scandinavia, there are \u201csauna dates,\u201d where nudity, closeness, and openness about sexuality are common, and shared time in the sauna helps break barriers and build intimacy. Some Amazon tribes practice group relationships, with children raised collectively and no single father \u2013 providing greater social solidarity. Modern trends, such as Japan\u2019s widespread love hotels for discreet sexual encounters and experimenting with roles and settings, or the Dutch embrace of public pleasure houses as social spaces, further show the breadth of sexual diversity. Globalization and technology expand sexual horizons, so more people explore unusual practices, find alternative ways to build intimacy, and draw inspiration from both old traditions and new trends \u2013 all evidence of the enormous diversity and dynamic evolution of human intimacy worldwide.<\/p>\n<h2 class=\"wp-block-heading\" id=\"fun-facts-about-kissing-and-sexuality-\u2013-the-impact-of-senses-on-closeness\">Fun facts about kissing and sexuality \u2013 the impact of senses on closeness<\/h2>\n<p>Kissing is one of the most universal forms of expressing emotion and closeness, present worldwide though its meaning, techniques, and perception differ greatly. Even first kisses enormously affect the way partners perceive each other \u2013 scientific studies show that more than 80 million bacteria are exchanged during kissing, dozens of facial muscles are activated, and pleasure-inducing neurotransmitters are released. A kiss isn\u2019t just an expression of feeling but also a tool for selecting mates in the evolutionary process \u2013 during kissing, the senses of smell and taste detect individual microbiomes and even genetic compatibility. We know that kissing increases oxytocin, the so-called love hormone, and endorphins, reducing stress and boosting feelings of safety. Scientific literature contains curious observations: people who kiss regularly report higher relationship satisfaction, fewer conflicts, and less aggression \u2013 all due to strengthened bonds via sensory activation and the brain\u2019s reward system. No wonder first kisses are considered so pivotal that they can determine a relationship\u2019s future, or the level of chemistry between people \u2013 up to 66% of women and 59% of men admit to ending a relationship after a poor kiss. The structure and sensitivity of the lips and tongue also matter \u2013 they hold the greatest number of touch receptors in the body, making every kiss a highly intense sensory experience. Furthermore, mass culture and national traditions influence how kissing is interpreted: for the French it\u2019s an intimate art, in Japan for years it was too private to show in public, and in some African communities kisses are strictly ceremonial. Experts also emphasize that a kiss serves as a \u201ccompatibility test\u201d \u2013 saliva exchange allows an evaluation of biochemical attractiveness, increasing the likelihood of reproductive genetic compatibility.<\/p>\n<p>The effect of the <a href=\"https:\/\/najzdrowie.pl\/zmysly-czlowieka\/uchwyt-dotyku\" target=\"_blank\" rel=\"noreferrer noopener\">senses<\/a> on sexual closeness goes far beyond kissing and touches on the essence of human intimacy. Touch, smell, taste, sight, and hearing are all intricately linked to pleasure, trust-building, and even emotional memory between partners. The sense of smell plays an unexpectedly key role: pheromones, unconscious chemical signals, influence mate choice and sexual interest, aiding in forming bonds. Psychological research has shown that the smell of a partner\u2019s sweat can reduce stress, especially in women, and a person\u2019s unique skin scent is a major factor in security and desire. Touch triggers natural brain reactions, fostering attachment \u2013 even gentle caresses activate the pleasure centers of the brain, which explains the subconscious drive for physical closeness. Taste can amplify sensual sensation, as during kissing and sex, learning the minute flavors of skin or saliva can become part of erotic play. Sight helps read a partner\u2019s emotions and desires \u2013 responsible for up to 80% of impressions during closeness and enhancing genuine connection. Recent research suggests that people open to a variety of sensory stimuli experience sex more intensely and are more satisfied with their intimate lives. Hearing, often underestimated, is another vital sense \u2013 sounds and whispers during intimacy greatly affect arousal, intimacy, and trust. Sensual contact psychology suggests that the more senses are engaged during intimacy, the stronger the attachment, satisfaction, and emotional closeness. Brain scans confirm that multi-sensory stimulation during sex and kissing activates areas responsible for happiness, bonding, and safety, showing that the senses form a powerful foundation for intimacy. The art of kissing and sensual contact is not just biology \u2013 it\u2019s a key to deep emotional harmony and fulfilling sexuality.<\/p>\n<h2 class=\"wp-block-heading\" id=\"debunked-myths-and-little-known-facts-\u2013-what-else-don't-you-know-about-sex\">Debunked myths and little-known facts \u2013 what else don&#8217;t you know about sex?<\/h2>\n<p>The topic of sex has given rise to countless myths, half-truths, and misconceptions that, although entrenched in popular culture, often lack scientific backing. One of the most widespread myths is that the frequency of sex determines a relationship&#8217;s happiness and stability. Studies show the number of intercourse is not crucial; rather, quality of intimacy, communication, and understanding each other&#8217;s needs matter most. The oft-repeated myth that men think about sex every seven seconds has also been debunked \u2013 research shows that sexual thoughts occur for both genders at fairly similar intervals, depending on age, lifestyle, or hormone levels. Another surprising fact is that for centuries, the female orgasm was taboo or even dismissed by medicine. Only recent brain imaging studies have proved that women&#8217;s sexual pleasure is just as \u201creal\u201d and intense as men\u2019s. A little-known fact is the anatomical difference in the clitoris \u2013 not just the visible part but also its extensive internal branches. These structures are just as sensitive to stimulation and may explain the variety in orgasm types women experience, underlining the importance of communication in bed.<\/p>\n<p>Another deeply rooted myth is that sex becomes unimportant or rare with age. In reality, many people remain sexually active into their sixties or beyond, and sexual satisfaction often increases with age due to greater experience, body acceptance, and deeper bonds. Older people usually feel less societal pressure and competition, allowing for authentic pleasure without complexes. Contrary to stereotypes, seniors can still enjoy intense orgasms and varied sexual practices with modern aids like lubricants and hormone treatments. It\u2019s also untrue that only penetration delivers sexual fulfillment: research highlights that for many women and men, caresses, oral sex, intimate massages, and communication are most important. More attention is also being paid to asexuality \u2013 an orientation defined by a lack of sexual attraction. About 1% of the population identifies as asexual, debunking the myth that everyone \u201cmust\u201d have sexual needs. Also surprising is that some people \u2013 today as in the past \u2013 practice celibacy by choice, whether for religious or personal spiritual reasons. The influence of diet and lifestyle on libido is also little known: for instance, chocolate, rich in phenylethylamine and tryptophan, has been linked to a mood boost and potential sex-life benefits. Science has shown that healthy sleep, moderate exercise, and limited substance use positively affect sex drive. Talking about fantasies, contrary to stereotypes, strengthens bonds\u2014up to 80% of couples who openly share desires report higher relationship satisfaction. Finally, scientists have debunked the notion of \u201cnormal\u201d sex \u2013 the range of natural intimate behaviors is extremely broad, and diversity in preferences reflects the richness of human sexuality, not \u201cdisorders.\u201d<\/p>\n<h2 class=\"wp-block-heading\">Summary<\/h2>\n<p class=\"has-normal-font-size\">The world of sex hides many non-obvious and surprising facts that affect our health, relationships, and perception of intimacy. By learning scientific evidence, global customs, the history of gadgets, and the influence of the senses, we break taboos and realize how much of sexuality remains unknown. Debunking popular myths makes us more open to improving sexual quality of life. Exploring fun facts about sex not only surprises but also educates and inspires a healthy approach to one&#8217;s own intimacy.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Discover fascinating sex facts and find out how they impact adult health. Surprising scientific studies await you!<\/p>\n","protected":false},"author":6,"featured_media":2954,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","rank_math_title":"Sex Fun Facts: Surprising Insights About Sexual Health","rank_math_description":"Discover fascinating sex fun facts and learn how they affect adult health. 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