The following are some of the common symptoms of RHS:

- Depression

- Skin rash

- Asthma

- Ulcers

- High blood pressure

Physical symptoms include:

- palpitations

- anorexia

- dry mouth

- insomnia

- thoracic/chest pressure

- respiratory difficulties

- epigastric mass

- headache

- a whole-body sensation of heat (distinct from heat intolerance, a symptom of hyperthyroidism)

Psychological symptoms include:

- being easily startled

- externalization of anger, also known in Korean as "bun" (분, 憤, "eruption of anger"), a Korean culture-related sentiment related to social unfairness

- generally sad mood

- frequent sighing

- a feeling of "eok-ul" (억울, 抑鬱, [feeling of] unfairness)

- being easily agitated

- feelings of guilt

- feelings of impending doom

Diagnosed patients may also have a medical history of prior major depressive disorder, dysthymic disorder, anxiety disorders, somatoform disorders, or adjustment disorder according to the "Diagnostic and Statistical Manual of Mental Disorders", fourth edition (DSM-IV) criteria.

Diagnosed patients are most likely to be middle-aged, post-menopausal women with low socio-economic status.

Hwabyeong or Hwabyung is a Korean somatization disorder, a mental illness which arises when people are unable to confront their anger as a result of conditions which they perceive to be unfair.

Hwabyung is a colloquial and somewhat inaccurate name, as it refers to the etiology of the disorder rather than its symptoms or apparent characteristics. Hwabyung is known as a culture-bound syndrome. The word hwabyung is composed of "hwa" (the Sino-Korean word for "fire" which can also contextually mean "anger") and "byung" (the Sino-Korean word for "syndrome" or "illness"). In South Korea, it may also be called "ulhwabyeong" (), literally "depression anger illness". In one survey, 4.1% of the general population in a rural area in Korea were reported as having hwabyung. Another survey shows that about 35% of Korean workers are affected by this condition at some time.

The Frontier Middle School shooting was a school shooting that occurred on February 2, 1996, at Frontier Middle School in Moses Lake, Washington, United States. The gunman, 14-year-old Barry Dale Loukaitis (born February 26, 1981), killed his algebra teacher and two students, and held his classmates hostage for over an hour before a gym coach subdued Loukaitis.

People who demonstrate factitious disorders often claim to have physical ailments or be recovering from the consequences of stalking, victimization, harassment, and sexual abuse. Several behaviors present themselves to suggest factors beyond genuine problems. After studying 21 cases of deception, Feldman listed the following common behavior patterns in people who exhibited Munchausen by Internet:

- Medical literature from websites or textbooks is often duplicated or discussed in great detail.

- The length and severity of purported physical ailments conflicts with user behavior. Feldman uses the example of someone posting in considerable detail about being in septic shock, when such a possibility is extremely unlikely.

- Symptoms of ailments may be exaggerated as they correspond to a user's misunderstanding of the nature of an illness.

- Grave situations and increasingly critical prognoses are interspersed with "miraculous" recoveries.

- A user's posts eventually reveal contradictory information or claims that are implausible: for example, other users of a forum may find that a user has been divulging contradictory information about occurrence or length of hospital visits.

- When attention and sympathy decreases to focus on other members of the group, a user may announce that other dire events have transpired, including the illness or death of a close family member.

- When faced with insufficient expressions of attention or sympathy, a forum member claims this as a cause that symptoms worsen or do not improve.

- A user resists contact beyond the Internet, such as by telephone or personal visit, often claiming bizarre reasons for not being able to accept such contact.

- Further emergencies are described with inappropriate happiness, designed to garner immediate reactions.

- The posts of other forum members exhibit identical writing styles, spelling errors, and language idiosyncrasies, suggesting that the user has created fictitious identities to move the conversation in their direction.

Morgellons (/mɔː(ɹ)ˈdʒɛlənz/) is the informal name of a self-diagnosed skin condition in which individuals have sores that they believe contain some kind of fibers. Morgellons is poorly understood but the general medical consensus is that it is a form of delusional parasitosis; the sores are the result of compulsive scratching, and the fibers, when analysed, turn out to originate from textiles.

The name was coined in 2002 by Mary Leitao, a mother who rejected the medical diagnosis of her son's delusional parasitosis. She revived it from a letter written by a physician in the mid-17th century. Leitao and others involved in her Morgellons Research Foundation successfully lobbied members of the U.S. Congress and the U.S. Centers for Disease Control and Prevention (CDC) to investigate the condition in 2006. CDC researchers issued the results of their multi-year study in January 2012, indicating that there were no disease organisms present in people with Morgellons and that the fibers found were likely cotton, and concluded that the condition was "similar to more commonly recognized conditions such as delusional infestation".

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.

Ordinal-linguistic personification (OLP, or personification for short) is a form of synesthesia in which ordered sequences, such as ordinal numbers, days, months and letters are associated with personalities and/or genders (). Although this form of synesthesia was documented as early as the 1890s (; ) researchers have, until recently, paid little attention to this form (see History of synesthesia research).

Munchausen by Internet is a pattern of behavior akin to Munchausen syndrome (renamed factitious disorder imposed on self), a psychiatric disorder, wherein those affected feign disease, illness, or psychological trauma to draw attention, sympathy, or reassurance to themselves. In Munchausen by internet, users seek attention by feigning illnesses in online venues such as chat rooms, message boards, and Internet Relay Chat (IRC). It has been described in medical literature as a manifestation of factitious disorder imposed on self, or if claiming illness of a child or other family member, factitious disorder imposed on another. Reports of users who deceive Internet forum participants by portraying themselves as gravely ill or as victims of violence first appeared in the 1990s due to the relative newness of Internet communications. The pattern was identified in 1998 by psychiatrist Marc Feldman, who created the term "Münchausen by Internet" in 2000. It is not included in the fifth revision of the "Diagnostic and Statistical Manual of Mental Disorders" (DSM-5).

The development of factitious disorders in online venues is made easier by the availability of medical literature on the Internet, the anonymous and malleable nature of online identities, and the existence of communication forums established for the sole purpose of giving support to members facing significant health or psychological problems. Several high-profile cases have demonstrated behavior patterns which are common among those who pose as gravely ill or as victims of violence, or whose deaths are announced to online forums. The virtual communities that were created to give support, as well as general non-medical communities, often express genuine sympathy and grief for the purported victims. When fabrications are suspected or confirmed, the ensuing discussion can create schisms in online communities, destroying some and altering the trusting nature of individual members in others.

A cuckold is the husband of an adulterous wife. In evolutionary biology, the term is also applied to males who are unwittingly investing parental effort in offspring that are not genetically their own.

Anorexia mirabilis literally means "miraculous lack of appetite". It refers almost exclusively to women and girls of the Middle Ages who would starve themselves, sometimes to the point of death, in the name of God. The phenomenon is also known by the name inedia prodigiosa ("prodigious fasting").

Latah, from Southeast Asia, is a condition in which abnormal behaviors result from a person experiencing a sudden shock. When surprised, the affected person typically engages in such behaviors as screaming, cursing, dancing type movements, and uncontrollable laughter, and will typically mimic the words or actions of those around them. Physical symptoms include an increased heart rate and profuse sweating, but no clear physiological source has been identified.

Latah is considered a culture-specific startle disorder that was historically regarded as personal difference rather than an illness.

Similar conditions have been recorded within other cultures and locations. For example, there are the so-called Jumping Frenchmen of Maine, the women of the Ainu people of Japan ("imu"), the Siberian ("miryachit"), and the Filipino and Thai peoples; however, the connection among these syndromes is controversial.

Morgellons is poorly understood but the general medical consensus is that it is a form of delusional parasitosis in which individuals have some form of actual skin condition that they believe contains some kind of fibers.

Latah can affect people differently; someone can have a very strong reaction or a slight reaction during a latah episode. Every instance of latah has been acquired over time. Those who are affected, which by an overwhelming number are middle-to-older-aged women, are not born latah. It typically occurs around the time of menopause. There is a lack of latah in the higher social strata of Malay and Java, which suggests they are more likely to suppress their responses than those who belong to lower social classes.

A latah episode occurs after a startle of some sort (poking, shouting, something falling). During an episode, a latah person will begin to shout obscenities, imitate words or gestures of those around them or even those on TV, and will often obey any commands given to them – no matter how outrageous or against cultural norms they are. Persons with latah make movements reminiscent of behaviors normally peculiar to certain childhood developmental stages. The person is unlikely to remember anything occurring during the episode.

Hoplophobia is a political neologism coined by retired American military officer Jeff Cooper as a pejorative to describe an "irrational aversion to weapons." It is also used to describe the "fear of firearms" or the "fear of armed citizens." Hoplophobia is a political term and not a recognized medical phobia.

Folie à deux (; ; French for "madness of two"), or shared psychosis, is a psychiatric syndrome in which symptoms of a delusional belief and sometimes hallucinations are transmitted from one individual to another. The same syndrome shared by more than two people may be called "folie à trois", "folie à quatre", "folie en famille" ("family madness"), or even "folie à plusieurs" ("madness of many").

Recent psychiatric classifications refer to the syndrome as shared psychotic disorder (DSM-IV – 297.3) and induced delusional disorder (F24) in the ICD-10, although the research literature largely uses the original name. This disorder is not in the current DSM (DSM-5). The disorder was first conceptualized in 19th-century French psychiatry by Charles Lasègue and Jean-Pierre Falret and is also known as Lasègue-Falret syndrome.

Foot binding was the custom of applying tight binding to the feet of young girls to modify the shape of their feet. The practice possibly originated among upper class court dancers during the Five Dynasties and Ten Kingdoms period in 10th century China, then became popular among the elite during the Song dynasty and eventually spread to all social classes by the Qing dynasty. Foot binding became popular as a means of displaying status (women from wealthy families, who did not need their feet to work, could afford to have them bound) and was correspondingly adopted as a symbol of beauty in Chinese culture. Foot binding limited the mobility of women, resulting in them walking in a swaying unsteady gait, although some women with bound feet working outdoor had also been reported. The prevalence and practice of foot binding varied in different parts of the country. Feet altered by binding were called lotus feet.

It has been estimated that by the 19th century, 40–50% of all Chinese women may have had bound feet, and up to almost 100% among upper class Han Chinese women. The Manchu Kangxi Emperor tried to ban foot binding in 1664 but failed. In the later part of the 19th century, Chinese reformers challenged the practice but it was not until the early 20th century that foot binding began to die out as a result of anti-foot-binding campaigns. Foot-binding resulted in lifelong disabilities for most of its subjects, and a few elderly Chinese women still survive today with disabilities related to their bound feet.

According to Michael First of the DSM-5 working committee the focus of a relational disorder, in contrast to other DSM-IV disorders, "is on the relationship rather than on any one individual in the relationship".

Relational disorders involve two or more individuals and a disordered "juncture", whereas typical Axis I psychopathology describes a disorder at the individual level. An additional criterion for a relational disorder is that the disorder cannot be due solely to a problem in one member of the relationship, but requires pathological interaction from each of the individuals involved in the relationship.

For example, if a parent is withdrawn from one child but not another, the could be attributed to a relational disorder. In contrast, if a parent is withdrawn from both children, the dysfunction may be more appropriately attributable to a disorder at the individual level.

First states that "relational disorders share many elements in common with other disorders: there are distinctive features for classification; they can cause clinically significant impairment; there are recognizable clinical courses and patterns of comorbidity; they respond to specific treatments; and they can be prevented with early interventions. Specific tasks in a proposed research agenda: develop assessment modules; determine the clinical utility of relational disorders; determine the role of relational disorders in the etiology and maintenance of individual disorders; and consider aspects of relational disorders that might be modulated by individual disorders."

The proposed new diagnosis defines a relational disorder as "persistent and painful patterns of feelings, behaviors, and perceptions" among two or more people in an important personal relationship, such a husband and wife, or a parent and children.

According to psychiatrist Darrel Regier, MD, some psychiatrists and other therapists involved in couples and marital counseling have recommended that the new diagnosis be considered for possible incorporation into the Diagnostic and Statistical Manual of Mental Disorders (DSM IV).

Ronnie and Donnie Galyon (born October 28, 1951) are two American conjoined twins. According to the 2009 "Guinness World Records", the Galyons are the oldest living set of conjoined twins in the world, and, as of 29 October 2014, possess the world record for the longest-lived conjoined twins in history.

They were born at St. Elizabeth Hospital in Dayton, Ohio, on 28 October 1951, to Wesley and Eileen Galyon; Eileen was not expecting twins. They were joined from the sternum to the groin and shared a set of organs, so they could not be separated. Local schools deemed the twins a distraction and they were subsequently never formally educated, resulting in their lifelong functional illiteracy.

With nine children to support, their father Wesley decided to take the twins on the road as a sideshow attraction. The boys were exhibited in sideshows throughout the US and later in Latin America. Their tours made them celebrities and provided an income with which they supported their family. The twins also tried to join the Army, but were ranked 4F.

In 1991, after three decades in entertainment, the pair retired and moved into their first independent home in Dayton, Ohio, in a house purchased with sideshow earnings. They were active in the community and lived a largely normal life by means of a custom double wheelchair. Although retired from show business, the twins made numerous television appearances. They appeared on "The Jerry Springer Show" in 1997, a Discovery Channel documentary in 1998 and a Channel Five documentary in 2009.

In 2009, Ronnie suffered a life-threatening infection in his lungs, which quickly endangered both twins. After their hospitalization, they required round-the-clock care. Their younger brother Jim and his wife Mary, who lived in the same town, were unable to bring the twins into their home as it was not handicap accessible, until an outpouring of donations and volunteers from the local community assisted in building a special addition to the home. On December 22, 2010, TLC premiered "The World's Oldest Conjoined Twins Move Home," which documented the building process as well as the twins' recovery and their return to the community.

Muselmann (pl. Muselmänner, the German version of Musulman, meaning Muslim) was a slang term used among captives of World War II Nazi concentration camps to refer to those suffering from a combination of starvation (known also as "hunger disease") and exhaustion and who were resigned to their impending death. The Muselmann prisoners exhibited severe emaciation and physical weakness, an apathetic listlessness regarding their own fate, and unresponsiveness to their surroundings owing to the barbaric treatment by the Nazis and prisoner functionaries.

Some scholars argue that the term possibly comes from the Muselmann's inability to stand for any time due to the loss of leg muscle, thus spending much of the time in a prone position, recalling the position of the Musulman (Muslim) during prayers.

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.

This syndrome is most commonly diagnosed when the two or more individuals concerned live in proximity and may be socially or physically isolated and have little interaction with other people. Various sub-classifications of "folie à deux" have been proposed to describe how the delusional belief comes to be held by more than one person :

- Folie imposée is where a dominant person (known as the 'primary', 'inducer' or 'principal') initially forms a delusional belief during a psychotic episode and imposes it on another person or persons (known as the 'secondary', 'acceptor' or 'associate') with the assumption that the secondary person might not have become deluded if left to his or her own devices. If the parties are admitted to hospital separately, then the delusions in the person with the induced beliefs usually resolve without the need of medication.

- Folie simultanée describes either the situation where two people considered to suffer independently from psychosis influence the content of each other's delusions so they become identical or strikingly similar, or one in which two people "morbidly predisposed" to delusional psychosis mutually trigger symptoms in each other.

Folie à deux and its more populous cousins are in many ways a psychiatric curiosity. The current Diagnostic and Statistical Manual of Mental Disorders states that a person cannot be diagnosed as being delusional if the belief in question is one "ordinarily accepted by other members of the person's culture or subculture" (see entry for delusion). It is not clear at what point a belief considered to be delusional escapes from the "folie à..." diagnostic category and becomes legitimate because of the number of people holding it. When a large number of people may come to believe obviously false and potentially distressing things based purely on hearsay, these beliefs are not considered to be clinical delusions by the psychiatric profession and are labelled instead as mass hysteria.

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.

Mme L. reports that “1, 2, 3 are children without fixed personalities; they play together. 4 is a good peaceful woman, absorbed by down-to-earth occupations and who takes pleasure in them. 5 is a young man, ordinary and common in his tastes and appearance, but extravagant and self-centered. 6 is a young man of 16 or 17, very well brought up, polite, gentle, agreeable in appearance, and with upstanding tastes; average intelligence; orphan. 7 is a bad sort, although brought up well; spiritual, extravagant, gay, likeable; capable of very good actions on occasion; very generous. 8 is a very dignified lady, who acts appropriately, and who is linked with 7 and has much influence on him. She is the wife of 9. 9 is the husband of 8. He is self-centred, maniacal, selfish, thinks only about himself, is grumpy, endlessly reproaching his wife for one thing or another; telling her, for example, that he would have been better to have married a 9, since between them they would have made 18 – as opposed to only 17 with her… 10, and the other remaining numerals, have no personifications”.

Cakins (1893) describes a case for whom “T’s are generally crabbed, ungenerous creatures. U is a soulless sort of thing. 4 is honest, but… 3 I cannot trust… 9 is dark, a gentleman, tall and graceful, but politic under his suavity” .

For synesthete MT “I [is] a bit of a worrier at times, although easy-going; J [is] male; appearing jocular, but with strength of character; K [is] female; quiet, responsible…” .

More recently AP has reported that February is “an introverted female”, while F is a “[male] dodgy geezer”. Similarly, May is reported to be “soft-spoken” and “girly” while M is an “old lady [who] natter[s] a lot”, and while August is “a boy among girls”, A is a female “mother type” (; ).

This syndrome was identified and coined by Nobuo Kurokawa and first appeared in a presentation of his to the Japanese Society of Psychosomatic Medicine in 1991. It is a condition where a woman begins to exhibit signs of physical illness and depression as her husband reaches, or approaches, retirement.

Kurokawa has theorized that RHS is a result of the fact that many of Japan's citizens who are reaching retirement age, 60, are members of the Baby Boomer generation of Japan. The members of this generation were expected to meet certain social requirements: that the man should be the breadwinner and work to support his family, and the woman was to be not only a homemaker but also to show a level of adoration for her salaryman husband as reward for his bringing in the money she used to look after their children and socialize with her friends.

As the husband's career as a salaryman can demand long hours away from home, both working and socializing with other salarymen and their bosses as is expected, a husband may leave home in the early hours of the morning and return home late at night. This could mean that a husband and wife may not interact extensively and when a husband retires both members of the couple can feel they are living together with someone who is a virtual stranger.

This can be a particularly stressful experience for the woman who, as society dictated in her youth, is expected to attend to her husband's every need and can find this a very large demand indeed. The stress this change in life style brings can lead not only to the above listed symptoms, but also to a level of resentment felt toward her husband. Some couples have been known to separate over RHS, however divorce is uncommon as it is not considered an acceptable option for that generation of Japanese. Also currently an ex-wife has no rights to a portion of her husband's pension should they divorce, and therefore may be unable to survive financially (though this was set to change in 2007). Despite this, the divorce rate among older Japanese couples has soared in recent decades, as more of the baby boomer population have retired, increasing by 26.5% in 10 years according to the health ministry. The number of divorces among couples married for 20 years or more hit 42,000 in 2004, double those recorded in 1985. Divorces among those married for more than 30 years quadrupled during the same period. In 2006, these figures were projected to rise further as more Japanese people were expected to retire in the subsequent five years than at any other point in Japanese history.

Some women deal with RHS by focusing their energy on obsessions such as collecting teddy bears, or following a celebrity, which they say can help them psychologically. They may also ask their husbands to stay on at work past retirement age. Many wives do not tell their husbands what is happening and this can worsen the stress as their husbands may not understand or even realize their wives are RHS sufferers.