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.

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.

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.

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.

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.

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:

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:

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.

Ladan and Laleh Bijani (in Persian: ) (January 17, 1974 – July 8, 2003) were Iranian conjoined twin sisters. They were joined at the head and died immediately after their complicated surgical separation. Coincidentally, the twins were born 100 years to the day of the deaths of Chang and Eng Bunker, also conjoined twins, famously known as the "original" Siamese twins.

Vegaphobia (or vegephobia) is the aversion to and discrimination against vegetarian and vegan people.

Refusal of work is behavior which refuses to adapt to regular employment.

As actual behavior, with or without a political or philosophical program, it has been practiced by various subcultures and individuals. Radical political positions have openly advocated refusal of work. From within Marxism it has been advocated by Paul Lafargue and the Italian workerist/autonomists (e.g. Antonio Negri, Mario Tronti), the French ultra-left (e.g. Échanges et Mouvement); and within anarchism (especially Bob Black and the post-left anarchy tendency).

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.

Counter-jihad or Counterjihad or Counter-jihad movement is a political current loosely consisting of authors, bloggers, think tanks, street movements and campaign organisations all linked by a common belief that the Western world is being subjected to takeover by Muslims. Several academic accounts have presented conspiracy theory as a key component of the counter jihad movement.

While the roots of the movement go back to the 1980s, it did not gain significant momentum until after the September 11 attacks in 2001 and the 7 July 2005 London bombings. As far back as 2006, online commentators such as Fjordman were identified as playing a key role in forwarding the nascent counter-jihad ideology. The movement received considerable attention following the 2011 Breivik murders whose manifesto extensively reproduced the writings of prominent counter-jihad bloggers, and following the emergence of prominent street movements such as the English Defence League (EDL). The movement has been variously described as pro-Israel, anti-Islamic, Islamophobic, inciting hatred against Muslims, or far-right.

The movement has adherents both in Europe and in North America, which according to some vary in tone. The European wing is more focused on the alleged cultural threat to European traditions stemming from immigrant Muslim populations, whereas the American wing emphasizes an alleged external threat, essentially terrorist in nature.

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).

Islamophobia in Norway refers to the set of discourses, behaviours and structures which express feelings of anxiety, fear, hostility and rejection towards Islam and/or Muslims in Norway. Islamophobia can manifest itself through discrimination in the workforce, negative coverage in the media, and violence against Muslims.

The 969 Movement () is a nationalist movement opposed to what they see as Islam’s expansion in predominantly-Buddhist Burma. The three digits of 969 "symbolise the virtues of the Buddha, Buddhist practices and the Buddhist community". The first 9 stands for the nine special attributes of the Lord Buddha and the 6 for the six special attributes of his Dharma, or Buddhist Teachings, and the last 9 represents the nine special attributes of Buddhist Sangha (monastic community). Those special attributes are the Three Jewels of the Buddha. In the past, the Buddha, Sangha, Dhamma, the wheel of Dhamma, and "969" were Buddhist signs.

The movement has inspired strong reactions within and beyond Myanmar. In the international media it has received criticism. "The Straits Times" reported that Ashin Wirathu, the movement's leader, responded to recent anti-Muslim violence with pledges to work for peace but critics remain sceptical.

Various media organizations have described the movement as being anti-Muslim or "Islamophobic". The movement's Myanmar Buddhist supporters deny it is anti-Muslim, with Bhikkhu Wirathu stating it is a protective movement about targeting "Bengalis who are terrorizing ethnic Rakhine (Buddhists)". Alex Bookbinder, in "The Atlantic", links the movement's origins in a book written in the late 1990s by Kyaw Lwin, a functionary in the Ministry of Religious Affairs, and its precepts are rooted in a traditional belief in numerology. Across South Asia, Muslims represent the phrase "In the Name of Allah, the Compassionate and Merciful" with the number 786, and businesses display the number to indicate that they are Muslim-owned. 969's proponents see this as a Muslim plot to conquer Burma in the 21st century, based on the premise that 7 plus 8 plus 6 is equal to 21. The number 969 is intended to be 786's cosmological opposite.

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.

Xenophobia is the fear and distrust of that which is perceived to be foreign or strange. Xenophobia can manifest itself in many ways involving the relations and perceptions of an ingroup towards an outgroup, including a fear of losing identity, suspicion of its activities, aggression, and desire to eliminate its presence to secure a presumed purity. Xenophobia is a political term and not a recognized medical phobia.

Xenophobia can also be exhibited in the form of an "uncritical exaltation of another culture" in which a culture is ascribed "an unreal, stereotyped and exotic quality". The terms xenophobia and racism are sometimes confused and used interchangeably because people who share a national origin may also belong to the same race. Due to this, xenophobia is usually distinguished by opposition to foreign culture.

A 2016 review found that about 120 DNA polymorphisms had been identified in the literature related to some aspect of athletic performance, 77 related to endurance and 43 related to power. 11 had been replicated in three or more studies and six were identified in genome-wide association studies, but 29 had not been replicated in at least one study.

The 11 replicated markers were:

- Endurance:

- ACE Alu I/D (rs4646994) (Called ACE I)

- ACTN3 577X

- PPARA rs4253778 G,

- PPARGC1A Gly482;

- power/strength markers:

- ACE Alu I/D (rs4646994) (called ACE D)

- ACTN3 Arg577

- AMPD1 Gln12

- HIF1A 582Ser

- MTHFR rs1801131 C

- NOS3 rs2070744 T

- PPARG 12Ala

The six GWAS markers were:

- CREM rs1531550 A,

- DMD rs939787 T

- GALNT13 rs10196189 G

- NFIA-AS1 rs1572312 C,

- RBFOX1 rs7191721 G

- TSHR rs7144481 C

Management of tendon injuries in the fingers is to follow the RICE method.

- Immediately cease climbing and any other activity that puts stress on the injured finger. Consult a doctor if there is noticeable "bowstringing" on the flexor tendon or if you are the least unsure about the nature of the injury.

- There are different theories out there for the preferred line of approach. Some argue for the use of NSAIDs and ice for visible swelling only, others argue diclofenac sodium should be applied and carefully rubbed in on the injury until the swelling starts to give.

- When the pain and swelling is gone (depending of the grade of the injury, 1–4 weeks), begin with an active healing process – containing squeezing putty clay or a stress ball. Combine this with light massage and mild stretching to ensure your finger will heal properly and better prepared for future stress. The use of heating pads and cold water baths are also mentioned in several sources in order to increase blood flow. Use this therapy for about twice as long as the previous resting period (2–8 weeks) before gradually returning, with the utmost care, to climbing.

- Gradually return to climbing while using prophylactic taping every time you climb, and spend the first weeks climbing relatively easy routes with big holds, good footholds and keep your sessions short and stay away from overhangs and campus areas/boards.

- Return to full-force climbing if easy climbing yields no pain. Continue taping (it will also serve as a mental note of the previous injury) and avoid tweaky crimps and pockets for several months, since complete tendon healing can take 100 days or more.

International human rights law does not recognize the refusal of work or right not to work by itself except the right to strike. However the Abolition of Forced Labour Convention adopted by International Labour Organization in 1957 prohibits all forms of forced labour.

Concussions and other types of repetitive play-related head blows in American football have been shown to be the cause of chronic traumatic encephalopathy (CTE), which has led to player suicides and other debilitating symptoms after retirement, including memory loss, depression, anxiety, headaches, and also sleep disturbances.

The list of ex-NFL players that have either been diagnosed "post-mortem" with CTE or have reported symptoms of CTE continues to grow.

14 of the 25 most recent winners (56%) have either failed tests or have confessed to have used doping. Together with those who failed tests but never sanctioned, 68% of the winners evidently used doping as detailed in the table below.

In 1996, they traveled to Germany, trying to convince doctors there to separate them; the German doctors however declined to operate, saying that the risk of separation surgery would be too high for both of them.

In November 2002, after meeting Dr. Keith Goh, the Bijani sisters travelled to Singapore to undergo the controversial operation. Even though they were warned by the doctors that the surgery to separate them would still be very risky, the sisters were very determined. Their decision to go ahead with the operation caused an international media blitz.

After eight months in Singapore, doing extensive psychiatric and legal evaluations, they underwent surgery on July 6, 2003, under the care of a large team of international specialists at Raffles Hospital, composed of 28 surgeons (including neurosurgeon Ben Carson) and more than 100 support staff working in shifts. A specially-designed chair was required that allowed the operation to be performed with both sisters in a sitting position.

The attempt to separate the twins turned out to be very difficult, because their brains not only shared a major vein (the superior sagittal sinus), but had fused together. The separation was achieved on July 8, 2003, but it was announced then that the twins were in critical condition, both having lost a large volume of blood due to complications of the operation.

The separation stage of the surgery completed at 13:30 (Singapore time, UTC +8), but there was significant blood loss during the blood vessel repairing process, and Ladan died at around 14:30 on the operating table; her sister Laleh died about 90 minutes later. Their deaths were announced by the chairman of Raffles Hospital, Dr. Loo Choon Yong.