The Lance Armstrong doping case was a doping investigation that led to American former professional road racing cyclist Lance Armstrong being stripped of his seven Tour de France titles and his eventual admission to the doping.

For much of the second phase of his career, Cyclist Lance Armstrong faced constant allegations of doping. Armstrong consistently denied allegations of doping until a partial confession during a broadcast interview with Oprah Winfrey in January 2013.

The 2007 Tour de France was affected by a series of scandals and speculations related to doping. By the end of the Tour, two cyclists were dismissed for failing tests and the wearer of the yellow jersey was voluntarily retired by his team for lying about his whereabouts and missing doping tests. A fourth rider was confirmed to having used doping while in a training session prior to the 2007 Tour and a fifth rider failed tests late in the race, with his result being officially announced just after the end of the Tour. During the competition, two teams were asked to withdraw after at least one member was found to have doped.

The events generated criticism and a general distrustful attitude toward the sport of professional cycling from media and public opinion. The doping allegations also resulted in several team sponsors threatening to retire their support if events advanced further. Some media such as German TV channels ARD and ZDF left the Tour once the first scandals broke. Following the Tour's conclusion, the sport's governing bodies spoke out about ways to combat the prevalence of doping in cycling and key team sponsors elected to withdraw their support due to the reputational damage caused by the scandals. The 2007 Tour de France has been referred to as one of the most controversial Tours. After the end of the Tour, "The Times" of London ranked it 4th in its list of the top 50 sporting scandals.

There have been allegations of doping in the Tour de France since the race began in 1903. Early Tour riders consumed alcohol and used ether, among other substances, as a means of dulling the pain of competing in endurance cycling. Riders began using substances as a means of increasing performance rather than dulling the senses, and organizing bodies such as the "Tour" and the International Cycling Union (UCI), as well as government bodies, enacted policies to combat the practice.

Use of performance-enhancing drugs in cycling predates the Tour de France. Cycling, having been from the start a sport of extremes, whether of speed by being paced by tandems, motorcycles and even cars, or of distance, the suffering involved encouraged the means to alleviate it. Not until after World War II were sporting or even particularly health issues raised. Those came shortly before the death of Tom Simpson in the Tour de France of 1967. Max Novich referred to the Tour de France in a 1973 issue of "New York State Journal of Medicine" as "a cycling nightmare". In the eyes of a 1998 German observer:

Doping in Russian sports has a systemic nature. Russia has had 51 Olympic medals stripped for doping violations – the most of any country, four times the number of the runner-up, and more than a third of the global total. From 2011 to 2015, more than a thousand Russian competitors in various sports, including summer, winter, and Paralympic sports, benefited from a cover-up.

In sports where physical strength is favored, athletes have used anabolic steroids, known for their ability to increase physical strength and muscle mass. The drug mimics the effect of testosterone and dihydrotestosterone in the body. They were developed after Eastern Bloc countries demonstrated success in weightlifting during the 1940s. At the time they were using testosterone, which carried with it negative effects, anabolic steroids were developed as a solution. The drug has been used across a wide range of sports from football and basketball to weightlifting and track and field. While not as life-threatening as the drugs used in endurance sports, anabolic steroids have negative side effects, including:

Side effects in women include:

- hair loss

- male pattern baldness

- hypertrophy of the clitoris

- increased sex drive

- irregularities of the menstrual cycle

- development of masculine facial traits

- increased coarseness of the skin

- premature closure of the epiphysis

In countries where the use of these drugs is controlled, there is often a black market trade of smuggled or counterfeit drugs. The quality of these drugs may be poor and can cause health risks. In countries where anabolic steroids are strictly regulated, some have called for a regulatory relief. Steroids are available over-the-counter in some countries such as Thailand and Mexico.

States that agree to the Convention align their domestic rules with the World Anti-Doping Code, which is promulgated by the World Anti-Doping Agency. This includes facilitating doping controls and supporting national testing programmes; encouraging the establishment of "best practice" in the labelling, marketing, and distribution of products that might contain prohibited substances; withholding financial support from those who engage in or support doping; taking measures against manufacturing and trafficking; encouraging the establishment of codes of conduct for professions relating to sport and anti-doping; and funding education and research on drugs in sport.

Cheating at the Paralympic Games has caused scandals that have significantly changed the way in which the International Paralympic Committee (IPC) manages the events.

Testing for performance-enhancing drugs has become increasingly strict and more widespread throughout the Games, with powerlifting seeing the most positive results. Competitors without disabilities have also competed in some Paralympic Games, with the Spanish entry in the intellectually disabled basketball tournament at the 2000 Summer Paralympics being the most controversial.

Juche (; ; ), usually left untranslated, or translated as "self-reliance", is the official state ideology of North Korea, described by the government as Kim Il-sung's "original, brilliant and revolutionary contribution to national and international thought". It postulates that "man is the master of his destiny", that the North Korean masses are to act as the "masters of the revolution and construction", and that by becoming self-reliant and strong a nation can achieve true socialism.

Kim Il-sung (1912–1994) developed the ideology, originally viewed as a variant of Marxism–Leninism until it became distinctly "Korean" in character, whilst incorporating the historical materialist ideas of Marxism–Leninism and strongly emphasising the individual, the nation state and its sovereignty. Consequently, "Juche" was adopted into a set of principles that the North Korean government has used to justify its policy decisions from the 1950s onwards. Such principles include moving the nation towards claimed ""jaju"" (independence), through the construction of ""jarip"" (national economy) and an emphasis upon ""jawi"" (self-defence), in order to establish socialism.

The Practice is firmly rooted in the ideals of sustainability through agricultural independence and a lack of dependency.

The "Juche" ideology has been criticized by many scholars and observers as a mechanism for sustaining the totalitarian rule of the North Korean regime, and justifying the country's heavy-handed isolationism and oppression of the North Korean people. It has also been described as a form of Korean ethnic nationalism, but one which promotes the Kim family as the saviours of the "Korean Race" and acts as a foundation of the subsequent personality cult surrounding them.

The Hungerford massacre was a series of random shootings in Hungerford, England, United Kingdom, on 19 August 1987, when Michael Robert Ryan, an unemployed antique dealer and handyman, fatally shot 16 people, including a police officer, before taking his own life. The shootings, committed using a handgun and two semi-automatic rifles, occurred at several locations, including a school he had once attended. 15 other people were also shot but survived. No firm motive for the killings has ever been established, although one psychologist has theorised Ryan's motive for the massacre had been a form of "anger and contempt for the ordinary life" around him, which he himself was not a tangible part of.

A report was commissioned by Home Secretary Douglas Hurd. The Firearms (Amendment) Act 1988 was passed in the wake of the massacre, which bans the ownership of semi-automatic centre-fire rifles and restricts the use of shotguns with a capacity of more than three cartridges. The shootings remain one of the deadliest firearms incidents in British history.

Anti-Chinese sentiment in the United States has existed since the late 18th century. Its origins have been traced to the American merchants, missionaries, and diplomats who sent home from China "relentlessly negative" reports of the people they encountered there. These attitudes were transmitted to Americans who never left North America, triggering talk of the Yellow Peril, and continued through the Cold War during McCarthyism. Modern anti-Chinese sentiment is the result of China's rise as a major world power. Anti-Chinese sentiment or sinophobia is a broad opposition or hostility to the people, policies, culture, or politics of China.

Anti-Arabism, Anti-Arab sentiment or Arabophobia is opposition to, or dislike, fear, hatred, and advocacy of genocide of Arab people.

Historically, anti-Arab prejudice has been suggested by such events as the reconquest of the Iberian Peninsula, the condemnation of Arabs in Spain by the Spanish Inquisition, the Zanzibar Revolution in 1964, and the 2005 Cronulla riots in Australia. In the current era, racial prejudice against Arabs is apparent in many countries including Iran, Poland, France, Australia, Israel, and the United States (including Hollywood). Various advocacy organizations have been formed to protect the civil rights of Arab citizens in the United States, such as the American-Arab Anti-Discrimination Committee (ADC) and the Council on American-Islamic Relations (CAIR).

The International Convention against Doping in Sport is a multilateral UNESCO treaty by which states agree to adopt national measures to prevent and eliminate drug doping in sport.

Nudity, or nakedness, is the state of wearing no clothing. The wearing of clothing is a predominantly human characteristic arising from functional needs such as protection from the elements and from cold temperatures, after the loss of body hair, and migration to colder regions. The amount of clothing worn depends on functional considerations, such as a need for warmth, as well as social circumstances. In some situations, a minimum amount of clothing or none at all may be considered socially acceptable, while in others much more clothing may be expected. Social considerations involve cultural issues of modesty, subjective decency and social norms, besides other considerations, and these may depend on the context. There may also be legal considerations.

A monstrous birth, variously defined in history, is a birth in which a defect of some sort renders the animal or human child monstrous. Such births were often taken as omens, signs of God, or moral warnings, but besides these supernatural or religious explanations, medical explanations were also given, in which often the mother's state of mind or her sexual behavior was responsible for the deformed fetus. In early and medieval Christianity, monstrous births posed difficult theological problems about humanity and salvation; in the early modern period the interest shifted toward scientific inquiry.

Anti-Chinese sentiment, Sinophobia (from Late Latin "Sinae" "China" and Greek φόβος, "phobos", "fear"), or Chinophobia is a sentiment against China, its people, overseas Chinese, or Chinese culture. It often targets Chinese minorities living outside of China and is complicated by the dilemma of immigration, development of national identity in neighbouring countries, disparity of wealth, the fall of the past central tribute system and majority-minority relations. Its opposite is Sinophilia. Factors contributing to sinophobia include disapproval of the Chinese government, historical grievances, fear of economic competition, and racism. Sinophobia also stems from older ethnic tensions, such as those related to Japanese nationalism, Korean nationalism, Indian nationalism and Vietnamese nationalism.

"Full nudity" refers to complete nudity, while "partial nudity" refers to less than full nudity, with parts of the body covered in some manner. The term "partial nudity" is sometimes used to refer to exposure of skin beyond what the person using the expression considers to be within the limits of modesty. If the exposure is within the standards of modesty of a given culture and setting (e.g. wearing a bikini at a non-nude beach), terms such as nudity, partial or otherwise, are not normally used. If however, the degree of exposure exceeds the cultural norms of the setting, or if the activity or setting includes nudity as an understood part of its function, such as a nude beach, terminology relating to nudity and degrees thereof are typically used. Toplessness is regarded by most people as partial nudity.

"Full frontal nudity" describes a state of full nudity with the subject facing towards the viewer, with the whole front of the body exposed, including intimate parts such as a man's penis or woman's vulva. "Partial frontal nudity" typically only refers to the exposure of the breasts. "Non-frontal nudity" describes nudity where the whole back side of the body, including the buttocks, is exposed, or a side-view from any other direction.

Since the introduction of doping tests in 1964, many cyclists were caught in the Tour de France. In recent years, 1996 Tour de France winner Bjarne Riis and points classification winner Erik Zabel, along with most of their Team Telekom team-mates, confessed to using erythropoietin (EPO). In 1997, former points classification winner Djamolidine Abdoujaparov was disqualified from the Tour de France for doping use. In 1998, the Festina affair had several main contenders removed from the race. In the next years, several riders were removed from the Tour de France for doping (see List of doping cases in cycling).

In addition, several riders were not allowed to start the previous Tour, including Jan Ullrich and Ivan Basso because of their involvement in the Operación Puerto doping case, a Spanish investigation against doctor Eufemiano Fuentes and a number of accomplices accused of administering prohibited doping products to approximately two hundred professional athletes, to enhance their performance.

After the completion of the 2006 Tour, winner Floyd Landis was found to have an elevated testosterone to epitestosterone ratio on a sample taken following Stage 17 of the race, and at the time of the 2007 Tour prologue. Since the results of an independent arbitration hearing were still pending Landis was prevented from defending his title. He was stripped of his 2006 Tour title in September 2007.

After each stage, four riders are tested: the overall leader, the stage winner, and two riders at random. In addition, every rider is tested before the first day's stage, normally a short time-trial. Most teams are tested in their entirety at some point during the three-week race. Additional testing may take place during the off-season, and riders are expected to keep their national cycling federation informed of their whereabouts so they can be located.

Many teams have their own drug testing programs to keep the team name clean. Teams, such as Quick-Step, have pulled riders before they compete in major competitions. Tom Boonen was pulled for cocaine before the 2008 Tour de France.

The World Anti-Doping Agency (WADA) is the main regulatory organization looking into the issue of the detection of gene doping. Both direct and indirect testing methods are being researched by the organization. Directly detecting the use of gene therapy usually requires the discovery of recombinant proteins or gene insertion vectors, while most indirect methods involve examining the athlete in an attempt to detect bodily changes or structural differences between endogenous and recombinant proteins.

Indirect methods are by nature more subjective, as it becomes very difficult to determine which anomalies are proof of gene doping, and which are simply natural, though unusual, biological properties. For example, Eero Mäntyranta, an Olympic cross country skier, had a mutation which made his body produce abnormally high amounts of red blood cells. It would be very difficult to determine whether or not Mäntyranta's red blood cell levels were due to an innate genetic advantage, or an artificial one.

The World Anti-Doping Agency (WADA) determined that non therapeutic form of genetic manipulation for enhancement of athletic performance is not allowed in sport. The WADA code implemented guidelines to determine if said technology should be prohibited in sport. If two of the three conditions are met, then the technology is prohibited in sport; harmful to one's health, performance enhancing, and/or against the "spirit of sport". The high risks associated with gene therapy can be outweighed by the potential save the lives of individuals with diseases. According to Alain Fischer, who was involved in clinical trials of gene therapy in children with severe combined immunodeficiency, "Only people who are dying would have reasonable grounds for using it. Using gene therapy for doping is ethically unacceptable and scientifically stupid." As seen with past cases, including the steroid tetrahydrogestrinone THG, athletes may choose to incorporate risky genetic technologies into their training regimes.

The mainstream perspective is that gene doping is dangerous and unethical, as is any application of a therapeutic intervention for non-therapeutic or enhancing purposes, and that it compromises the ethical foundation of medicine and the spirit of sport. Others, who support human enhancement on broader grounds, or who see a false dichotomy between "natural" and "artificial" or a denial of the role of technology in improving athletic performance, do not oppose or support gene doping.

Gardner described PAS as a preoccupation by the child with criticism and deprecation of a parent. Gardner stated that PAS occurs when, in the context of child custody disputes, one parent deliberately or unconsciously attempts to alienate a child from the other parent. According to Gardner, PAS is characterized by a cluster of eight symptoms that appear in the child. These include a campaign of denigration and hatred against the targeted parent; weak, absurd, or frivolous rationalizations for this deprecation and hatred; lack of the usual ambivalence about the targeted parent; strong assertions that the decision to reject the parent is theirs alone (the "independent-thinker phenomenon"); reflexive support of the favored parent in the conflict; lack of guilt over the treatment of the alienated parent; use of borrowed scenarios and phrases from the alienating parent; and the denigration not just of the targeted parent but also to that parent's extended family and friends. Despite frequent citations of these factors in scientific literature, "the value ascribed to these factors has not been explored with professionals in the field".

Gardner and others have divided PAS into mild, moderate and severe levels. The number and severity of the eight symptoms displayed increase through the different levels. The recommendations for management differ according to the severity level of the child's symptoms. While a diagnosis of PAS is made based on the child's symptoms, Gardner stated that any change in custody should be based primarily on the symptom level of the alienating parent. In mild cases, there is some parental programming against the targeted parent, but little or no disruption of visitation, and Gardner did not recommend court-ordered visitation. In moderate cases, there is more parental programming and greater resistance to visits with the targeted parent. Gardner recommended that primary custody remain with the programming parent if the brainwashing was expected to be discontinued, but if not, that custody should be transferred to the targeted parent. In addition, therapy with the child to stop alienation and remediate the damaged relationship with the targeted parent was recommended. In severe cases, children display most or all of the 8 symptoms, and will refuse steadfastly to visit the targeted parent, including threatening to run away or commit suicide if the visitation is forced. Gardner recommended that the child be removed from the alienating parent's home into a transition home before moving into the home of the targeted parent. In addition, therapy for the child is recommended. Gardner's proposed intervention for moderate and severe PAS, including court-ordered transfer to the alienated parent, fines, house arrest, incarceration, have been critiqued for their punitive nature towards the alienating parent and alienated child, and for the risk of abuse of power and violation of their civil rights. With time, Gardner revised his views and expressed less support for the most aggressive management strategies.

Transphobia is a range of negative attitudes, feelings or actions toward transgender or transsexual people, or toward transsexuality. Transphobia can be emotional disgust, fear, violence, anger or discomfort felt or expressed towards people who do not conform to society's gender expectations. It is often expressed alongside homophobic views and hence is often considered an aspect of homophobia. Transphobia is a type of prejudice and discrimination similar to racism and sexism, and transgender people of color are often subjected to all three forms of discrimination at once.

Child victims of transphobia experience harassment, school bullying, and violence in school, foster care, and social programs. Adult victims experience public ridicule, harassment including misgendering, taunts, threats of violence, robbery, and false arrest; many feel unsafe in public. A high percentage report being victims of sexual violence. Some are refused healthcare or suffer workplace discrimination, including being fired for being transgender, or feel under siege by conservative political or religious groups who oppose laws to protect them. There is even discrimination from some people within the movement for the rights of gender and sexual minorities.

Besides the increased risk of violence and other threats, the stress created by transphobia can cause negative emotional consequences which may lead to substance abuse, running away from home (in minors), and a higher rate of suicide.

In the Western world, there have been gradual changes towards the establishment of policies of non-discrimination and equal opportunity. The trend is also taking shape in developing nations. In addition, campaigns regarding the LGBT community are being spread around the world to improve acceptance; the "Stop the Stigma" campaign by the UN is one such development.

Parental alienation syndrome (abbreviated as PAS) is a term coined by child psychiatrist Richard A. Gardner, and introduced in his 1985 paper, to describe a suite of distinctive behaviors consistently shown by children who have been psychologically manipulated into showing unwarranted fear, disrespect or hostility towards a parent and/or other family members - typically, by the other parent and during child custody disputes. An early proponent of parental alienation syndrome argued that parental alienation involves a focus on the parent, while parental alienation syndrome also involves hatred and vilification of a targeted parent by the child.

Parental alienation syndrome is not recognized as a disorder by the medical or legal communities and Gardner's theory and related research have been extensively criticized by legal and mental health scholars for lacking scientific validity and reliability. However, the separate but related concept of parental alienation, the estrangement of a child from a parent, is recognized as a dynamic in some divorcing families.

The admissibility of PAS has been rejected by an expert review panel and the Court of Appeal of England and Wales in the United Kingdom and Canada's Department of Justice recommends against its use. PAS has been mentioned in some family court cases in the United States. Gardner portrayed PAS as well accepted by the judiciary and having set a variety of precedents, but legal analysis of the actual cases indicates that as of 2006 this claim was incorrect.

No professional association has recognized PAS as a relevant medical syndrome or mental disorder, and it is not listed in the International Statistical Classification of Diseases and Related Health Problems of the WHO or in the American Psychiatric Association's "Diagnostic and Statistical Manual of Mental Disorders" (DSM).