All articles starting with S
44,216 articles
Sex education in India
Sex education in India, delivered mainly as Adolescence Education (AEP) since 2005 after SAEP in 2002, covers puberty, HIV/AIDS, and life skills in 50,000+ schools; in 2026 the Centre told the Supreme Court it would introduce comprehensive sex education nationwide.
Sex education in the United States
Sex education in the United States: state-mandated school instruction on sexuality, HIV, relationships, and consent; 30 states plus DC mandated it as of 2020, with varying medical-accuracy and parental-consent rules.
Sex Education series 1
Sex Education series 1: the eight-episode first season of the British teen comedy-drama created by Laurie Nunn, starring Asa Butterfield, Gillian Anderson, Emma Mackey, and Ncuti Gatwa; premiered January 11, 2019 on Netflix, drew over 40 million households in four weeks, scored 79 on Metacritic, and was renewed February 1, 2019.
Sex estimation
Sex estimation is the determination of the biological sex of adult skeletal remains from bones such as the pelvis and skull, a core forensic anthropology task.
Sex hormone-binding globulin
Sex hormone-binding globulin (SHBG, TeBG, sex steroid-binding protein): liver-produced homodimeric plasma glycoprotein binding testosterone, DHT, and estradiol; regulates free sex steroid levels and predicts metabolic syndrome and diabetes.
Sex House
Sex House is a 2012 ten-episode Onion Digital Studios web series on YouTube parodying The Real World and MTV reality shows; six housemates locked in a house descend from sex-show satire into survival horror.
Sex Hysteria
Sex Hysteria is the second studio album by American singer Jessie Murph, released July 18, 2025. The record draws on her upbringing in Alabama and her father.
Sex in advertising
Sex in advertising is the use of sexual imagery or innuendo in marketing to attract attention; it improves ad recall but does little for brand memory or buying.
Sex in film
Sex in film: depiction of sex, desire, and nudity in cinema, shaped by obscenity law, the Hays Code and MPAA ratings, the 1966-1971 collapse of American censorship, gendered rating bias, declining mainstream sex scenes, and intimacy coordinators.
Sex in space
Sex in space, also called space sex, covers whether humans have had sex in orbit, which no astronaut has officially done, and how spaceflight affects reproduction.
Sex industry
The sex industry, also known as the sex trade or adult entertainment industry, comprises businesses and workers selling sexual services and adult content, with worldwide revenue estimated near $186 billion.
Sex Is Zero (색즉시공)
Sex Is Zero (색즉시공) is a 2002 South Korean sex comedy directed by Yoon Je-gyun, starring Lim Chang-jung and Ha Ji-won; it drew 4,082,797 admissions and spawned the 2007 sequel Sex Is Zero: Season 2.
Sex life
Sex life: the pattern of sexual activity, desire, and intimate expression in a person's life, also called sexuality and sexual health; defined by the WHO as well-being in relation to sexuality, studied across history, cohorts, and the lifespan.
Sex linkage
Sex linkage: inheritance of genes on the X and Y sex chromosomes, showing crisscross inheritance, no male-to-male transmission, hemizygous male expression, X-inactivation, and classic examples such as hemophilia A and color blindness.
Sex machine
A sex machine is a motor-driven device that sustains sexual stimulation beyond manual effort, including saddle-style, thrusting, and handheld types.
Sex magic
Sex magic, also called sexual magic, is the use of sexual activity or orgasm as a source of magical power, with a large literature emerging in the nineteenth century.
Sex manual
Sex manual, also called sex advice or sex self-help book: practical instructional literature on sexual technique and relationships, distinct from erotica. Spans the Kama Sutra, Islamic manuals, Married Love, and The Joy of Sex, with censorship history and clinical bibliotherapy evidence.
Sex Matters (advocacy group)
Sex Matters is a UK human-rights charity and advocacy group (CIO 1207701, registered 3 April 2024), co-founded by Maya Forstater, campaigning on biological sex, single-sex services, and women's sport.
Sex offender
Sex offender: a person convicted of a sex offense, defined for U.S. federal purposes by SORNA (34 U.S.C. 20901). Covers registries from the 1994 Wetterling Act and 1996 Megan's Law to the 2006 Adam Walsh Act, recidivism rates, risk assessment tools, and treatment research.
Sex offender registries in the United States
Sex offender registries in the United States: state and federal databases of convicted sex offenders, established federally by the Jacob Wetterling Act (1994), Megan's Law (1996), and SORNA (2006). Research shows little effect on recidivism.
Sex offender registry
Sex offender registry: government databases of people convicted of designated sex offenses, also called SORN systems. U.S. framework runs from the 1994 Wetterling Act and Megan's Law to SORNA (Adam Walsh Act, 2006), with tiered registration durations and public websites.
Sex on Fire
Sex on Fire is a 2008 Kings of Leon song from Only by the Night, written by the four Followills. It was the band's first UK Number 1, spent three weeks on top, and ranks among Britain's best-selling singles.
Sex organ
A sex organ, also called a reproductive organ or genital, is any body part involved in sexual reproduction, including gonads that produce sperm and eggs, ducts, and external mating structures.
Sex peptide
Sex peptide (SP, Acp70A) is a 36-amino-acid Drosophila melanogaster male accessory gland peptide transferred at mating; it reduces female receptivity, raises egg laying, binds sperm for gradual release, and acts via the SPR receptor.
Sex Pistols
English punk rock band formed in London in 1972, originally called The Strand or The Swankers. Steve Jones, Paul Cook, Glen Matlock, and John Lydon; McLaren-managed, one album, Never Mind the Bollocks (1977), number 1 in the UK, split in 1978.
Sex Pistols at the Lesser Free Trade Hall
Two Sex Pistols gigs at Manchester's Lesser Free Trade Hall, 4 June and 20 July 1976, booked by Devoto and Shelley; tiny audiences including Hook, Sumner, Morrissey, Curtis, Smith, and Wilson seeded Buzzcocks, Joy Division, The Smiths, The Fall, and Factory Records.
Sex position
Sex position: the bodily arrangement partners use during sexual intercourse or other sexual activity. Also called coital positions; classified into frontal, rear-entry, side-lying, woman-on-top, and adapted variants; studied for pain, injury risk, and disability adaptation.
Sex ratio
Sex ratio: proportion of males to females in a population, measured as primary, secondary, tertiary, operational, quaternary, or adult sex ratio. Shaped by Fisher's equal investment principle, temperature-dependent sex determination in reptiles and fish, and climate-driven skew.
Sex robot
A sex robot, or sexbot, is an anthropomorphic robot designed for sexual interaction with humans, distinct from non-interactive sex dolls and bodiless AI companion chatbots.
Sex scandal
Sex scandal: a media-amplified public controversy over the sexual conduct of public figures. Key cases include Lewinsky (1998), Sandusky (2011), Nassar, and Weinstein (2017, #MeToo); research emphasizes gendered double standards in framing.