Conditions

Gastroesophageal reflux disease (GERD), gastro-oesophageal reflux disease (GORD), gastric reflux disease, or acid reflux disease is a chronic symptom of mucosal damage caused by stomach acid coming up from the stomach into the esophagus.[1]

GERD is usually caused by changes in the barrier between the stomach and the esophagus, including abnormal relaxation of the lower esophageal sphincter, which normally holds the top of the stomach closed; impaired expulsion of gastric reflux from the esophagus, or a hiatal hernia. These changes may be permanent or temporary (“transient”).

Another kind of acid reflux, which causes respiratory and laryngeal signs and symptoms, is called laryngopharyngeal reflux (LPR) or “extraesophageal reflux disease” (EERD). Unlike GERD, LPR is unlikely to produce heartburn, and is sometimes called silent reflux.

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Attention deficit disorder (ADD) is one of the three subtypes of Attention-deficit hyperactivity disorder (ADHD). The term was formally changed in 1994 in the new Diagnostic and Statistical Manual of Mental Disorders, fourth edition (DSM-IV) to “ADHD predominantly inattentive” (ADHD-PI or ADHD-I), though the term attention deficit disorder is still widely used. ADD is similar to the other subtypes of ADHD in that it is characterized primarily by inattention, easy distractibility, disorganization, procrastination, and forgetfulness; where it differs is in lethargy – fatigue, and having fewer or no symptoms of hyperactivity or impulsiveness typical of the other ADHD subtypes. Different countries have used different ways of diagnosing ADD. In the UK, diagnosis is based on quite a narrow set of symptoms, and about 0.5–1% of children are thought to have attention or hyperactivity problems. The USA used a much broader definition of the term ADHD. As a result, up to 10% of children in the USA were described as having ADHD. Current estimates suggest that ADHD is present throughout the world in about 1–5% of the population. About five times more boys than girls are diagnosed with ADHD. Medications include two classes of drugs, stimulants and non-stimulants. Drugs for ADHD are divided into first-line medications and second-line medications. First-line medications include several of the stimulants, and tend to have a higher response rate and effect size than second-line medications. Although medication can help improve concentration, it does not cure ADD and the symptoms will come back once the medication stops.

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Anxiety (also called angst or worry) is a psychological and physiological state characterized by somatic, emotional, cognitive, and behavioral components.[2] It is the displeasing feeling of fear and concern.[3] The root meaning of the word anxiety is ‘to vex or trouble‘; in either presence or absence of psychological stress, anxiety can create feelings of fear, worry, uneasiness, and dread.[4] However, anxiety should not be confused with fear, it is more of a dreaded feeling about something which appears intimidating and can overcome an individual.[5] Anxiety is considered to be a normal reaction to a stressor. It may help an individual to deal with a demanding situation by prompting them to cope with it. However, when anxiety becomes overwhelming, it may fall under the classification of an anxiety disorder.[6]

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The autism spectrum or autistic spectrum describes a range of conditions classified as pervasive developmental disorders in the Diagnostic and Statistical Manual of Mental Disorders (DSM). Pervasive developmental disorders include autism, Asperger syndrome, pervasive developmental disorder not otherwise specified (PDD-NOS), childhood disintegrative disorder, and Rett syndrome, although usually only the first three conditions are considered part of the autism spectrum. These disorders are typically characterized by social deficits, communication difficulties, stereotyped or repetitive behaviors and interests, and in some cases, cognitive delays. Although these diagnoses share some common features, individuals with these disorders are thought to be “on the spectrum” because of differences in severity across these domains.

Autism is characterized by delays or abnormal functioning before the age of three years in one or more of the following domains: (1) social interaction; (2) communication; and (3) restricted, repetitive, and stereotyped patterns of behavior, interests, and activities. Social impairments are marked by poor use of nonverbal communication, difficulty in peer relations, lack of social-emotional reciprocity, and lack of shared enjoyment. Communication deficits may include failure to develop speech, use of stereotyped or delayed echolalia, and difficulties maintaining conversations. Social and communication impairments may also cause a lack of symbolic or imaginative play. Restricted and repetitive behaviors may include unusual preoccupations with narrow interests, inflexibility to nonfunctional routines, stereotyped and repetitive mannerisms, and preoccupations with parts of objects.

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Back pain is pain felt in the back that usually originates from the muscles, nerves, bones, joints or other structures in the spine.

Back pain may have a sudden onset or can be a chronic pain; it can be constant or intermittent, stay in one place or radiate to other areas. It may be a dull ache, or a sharp or piercing or burning sensation. The pain may radiate into the arms and hands as well as the legs or feet, and may include symptoms other than pain, such as weakness, numbness or tingling.

Back pain is one of humanity’s most frequent complaints. In the U.S., acute low back pain (also called lumbago) is the fifth most common reason for physician visits. About nine out of ten adults experience back pain at some point in their life, and five out of ten working adults have back pain every year.[1]

The spine is a complex interconnecting network of nerves, joints, muscles, tendons and ligaments, and all are capable of producing pain. Large nerves that originate in the spine and go to the legs and arms can make pain radiate to the extremities.[2]

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A spinal cord injury (SCI) refers to any injury to the spinal cord that is caused by trauma instead of disease.[1] Depending on where the spinal cord and nerve roots are damaged, the symptoms can vary widely, from pain to paralysis to incontinence.[2][3] Spinal cord injuries are described at various levels of “incomplete”, which can vary from having no effect on the patient to a “complete” injury which means a total loss of function.

Treatment of spinal cord injuries starts with restraining the spine and controlling inflammation to prevent further damage. The actual treatment can vary widely depending on the location and extent of the injury. In many cases, spinal cord injuries require substantial physical therapy and rehabilitation, especially if the patient’s injury interferes with activities of daily life.

Spinal cord injuries have many causes, but are typically associated with major trauma from motor vehicle accidents, falls, sports injuries, and violence. Research into treatments for spinal cord injuries includes controlled hypothermia and stem cells, though many treatments have not been studied thoroughly and very little new research has been implemented in standard care.

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Carpal tunnel syndrome (CTS) is an entrapment median neuropathy, causing paresthesia, pain, numbness, and other symptoms in the distribution of the median nerve due to its compression at the wrist in the carpal tunnel. The pathophysiology is not completely understood but can be considered compression of the median nerve traveling through the carpal tunnel.[1] The National Center for Biotechnology Information and highly cited literature[2] say the most common cause of CTS is typing.[3] Research by Lozano-Calderón has cited genetics as a factor,[4] and has encouraged caution in ascribing causality.[5]

The main symptom of CTS is intermittent numbness of the thumb, index, long and radial half of the ring finger.[6] The numbness often occurs at night, with the hypothesis that the wrists are held flexed during sleep. Recent literature suggests that sleep positioning, such as sleeping on one’s side, might be an associated factor.[7] It can be relieved by wearing a wrist splint that prevents flexion.[8] Long-standing CTS leads to permanent nerve damage with constant numbness, atrophy of some of the muscles of the thenar eminence, and weakness of palmar abduction.[9]

Pain in carpal tunnel syndrome is primarily numbness that is so intense that it wakes one from sleep. Pain in electrophysiologically verified CTS is associated with misinterpretation of nociception and depression.[10]

Palliative treatments for CTS include use of night splints and corticosteroid injection. The only scientifically established disease modifying treatment is surgery to cut the transverse carpal ligament

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Otitis media (Latin) is inflammation of the middle ear, or middle ear infection.

It occurs in the area between the tympanic membrane and the inner ear, including a duct known as the eustachian tube. It is one of the two most common causes of earache – the other being otitis externa. Diseases other than ear infections can also cause ear pain, including cancers of any structure that shares nerve supply with the ear and shingles which can lead to herpes zoster oticus. Though painful, otitis media is not threatening and usually heals on its own within 2–6 weeks.

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Chronic fatigue syndrome (CFS) is the most common name[1] used to designate a significantly debilitating[2] medical disorder or group of disorders[3] generally defined by persistent fatigue accompanied by other specific symptoms for a minimum of six months in adults (and 3 months in children/adolescents[4]), not due to ongoing exertion, not substantially relieved by rest, nor caused by other medical conditions.[2] The disorder may also be referred to as myalgic encephalomyelitis (ME), post-viral fatigue syndrome (PVFS), chronic fatigue immune dysfunction syndrome (CFIDS), or several other terms. Biological, genetic, infectious and psychological mechanisms have been proposed for the development and persistence of symptoms but the etiology of CFS is not understood and may have multiple causes.[5][6] There is no diagnostic laboratory test or biomarker for CFS.[2]

Symptoms of CFS include post-exertional malaise; unrefreshing sleep; widespread muscle and joint pain; sore throat; headaches of a type not previously experienced; cognitive difficulties; chronic, often severe, mental and physical exhaustion; and other characteristic symptoms in a previously healthy and active person. Persons with CFS may report additional symptoms including muscle weakness, increased sensitivity to light, sounds and smells, orthostatic intolerance, digestive disturbances, depression, and cardiac and respiratory problems.[7] It is unclear if these symptoms represent co-morbid conditions or are produced by an underlying etiology of CFS.[5] CFS symptoms vary from person to person in number, type, and severity.[8]

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Crohn’s disease, also known as regional enteritis, is a type of inflammatory bowel disease that may affect any part of the gastrointestinal tract from mouth to anus, causing a wide variety of symptoms. It primarily causes abdominal pain, diarrhea (which may be bloody if inflammation is at its worst), vomiting (can be continuous), or weight loss,[1][2][3] but may also cause complications outside the gastrointestinal tract such as skin rashes, arthritis, inflammation of the eye, tiredness, and lack of concentration.[1] Crohn’s disease is caused by interactions between environmental, immunological and bacterial factors in genetically susceptible individuals.[4][5][6] This results in a chronic inflammatory disorder, in which the body’s immune system attacks the gastrointestinal tract possibly directed at microbial antigens.[5][7] Crohn’s disease has traditionally been described as an autoimmune disease, but recent investigators have described it as an immune deficiency state.[8][7][9][10]

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Biliary colic is pain associated with irritation of the viscera secondary to cholecystitis and gallstones. Unlike renal colic, the phrase ‘biliary colic’ refers to the actual cholelithiasis.

Although it is frequently described as a colic, the pain is steady, starts rapidly, intense and lasts at least 30 minutes and up to several hours. Many patients complain of right upper quadrant pain, right flank pain, or even mid chest pain with cholelithiasis. There may be radiation to the back and shoulders and other concomitant symptoms such as vomiting and diarrhea. Fatty foods can provoke biliary pain, but this association is relatively non-specific.

Biliary pain can be associated with objective findings (dilation of the biliary tract, elevation of plasma liver enzyme concentration, elevation of bilirubin, gamma-GT and alkaline phosphatase).

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Concussion, from the Latin concutere (“to shake violently”)[1] or the Latin concussus (“action of striking together”),[2] is the most common type of traumatic brain injury. The terms mild brain injury, mild traumatic brain injury (MTBI), mild head injury (MHI), minor head trauma, and concussion may be used interchangeably,[3][4] although the last is often treated as a narrower category.[5] The term “concussion” has been used for centuries and is still commonly used in sports medicine, while “MTBI” is a technical term used more commonly nowadays in general medical contexts. Frequently defined as a head injury with a temporary loss of brain function, concussion can cause a variety of physical, cognitive, and emotional symptoms.

Treatment of concussion involves monitoring and rest. Rest includes both physical and cognitive rest (including going easy on such activities as school work, television watching and text messaging).[6] Symptoms usually go away entirely within three weeks, though they may persist, or complications may occur.[7]

People who have had one concussion seem to be more susceptible to another, especially if the new injury occurs before symptoms from the previous concussion have completely gone away.[8] There is also a negative progressive process if smaller impacts cause the same symptom severity.[6] Repeated concussions may increase a person’s risk in later life for dementia, Parkinson’s disease, and/or depression.[8]

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Immunosuppression involves an act that reduces the activation or efficacy of the immune system. Some portions of the immune system itself have immuno-suppressive effects on other parts of the immune system, and immunosuppression may occur as an adverse reaction to treatment of other conditions.

In general, deliberately induced immunosuppression is performed to prevent the body from rejecting an organ transplant, treating graft-versus-host disease after a bone marrow transplant, or for the treatment of auto-immune diseases such as rheumatoid arthritis or Crohn’s disease. This is typically done using drugs, but may involve surgery (splenectomy), plasmapharesis, or radiation.

A person who is undergoing immunosuppression, or whose immune system is weak for other reasons (for example, chemotherapy, HIV, and Lupus), is said to be immunocompromised.

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All diseases that pertain to the gastrointestinal tract are labelled as digestive diseases. This includes diseases of the oesophagus, stomach, duodenum, jejunum, ileum, the ileo-cecal complex, large intestine (ascending, transverse, and descending colon), sigmoid colon, and rectum.

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Fibromyalgia (FM or FMS) is a medical disorder characterized by chronic widespread pain and allodynia, a heightened and painful response to pressure.[1] Fibromyalgia symptoms are not restricted to pain, leading to the use of the alternative term fibromyalgia syndrome for the condition. Other symptoms include debilitating fatigue, sleep disturbance, and joint stiffness. Some patients[2] may also report difficulty with swallowing,[3] bowel and bladder abnormalities,[4] numbness and tingling,[5] and cognitive dysfunction.[6] Fibromyalgia is frequently comorbid with psychiatric conditions such as depression and anxiety and stress-related disorders such as posttraumatic stress disorder.[7][8] Not all people with fibromyalgia experience all associated symptoms.[9] Fibromyalgia is estimated to affect 2–4% of the population,[7] with a female to male incidence ratio of approximately 9:1.[10] The term “fibromyalgia” derives from new Latin, fibro-, meaning “fibrous tissues”, Greek myo-, “muscle”, and Greek algos-, “pain”; thus the term literally means “muscle and connective tissue pain”.

The brains of fibromyalgia patients show functional and structural differences from those of healthy individuals, but it is unclear whether the brain anomalies cause fibromyalgia symptoms or are the product of an unknown underlying common cause. Some research suggests that these brain anomalies may be the result of childhood stress, or prolonged or severe stress.[8]

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A headache or cephalalgia is pain anywhere in the region of the head or neck. It can be a symptom of a number of different conditions of the head and neck.[1] The brain tissue itself is not sensitive to pain because it lacks pain receptors. Rather, the pain is caused by disturbance of the pain-sensitive structures around the brain. Nine areas of the head and neck have these pain-sensitive structures, which are the cranium (the periosteum of the skull), muscles, nerves, arteries and veins, subcutaneous tissues, eyes, ears, sinuses and mucous membranes.

There are a number of different classification systems for headaches. The most well-recognized is that of the International Headache Society. Headache is a non-specific symptom, which means that it has many possible causes. Treatment of a headache depends on the underlying etiology or cause, but commonly involves analgesics.

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Infertility is the inability of a person, animal or plant to reproduce by natural means. It is usually not the natural state of a healthy adult organism, except notably among certain eusocial species (mostly haplodiploid insects).

In humans, infertility may describe a woman who is unable to conceive as well as being unable to carry a pregnancy to full term. There are many biological and other causes of infertility, including some that medical intervention can treat.[1] Infertility rates have increased by 4% since the 1980s, mostly from problems with fecundity due to an increase in age.[2] About 40% of the issues involved with infertility are due to the man, another 40% due to the woman, and 20% result from complications with both partners.[3][]

Women who are fertile experience a natural period of fertility before and during ovulation, and they are naturally infertile during the rest of the menstrual cycle. Fertility awareness methods are used to discern when these changes occur by tracking changes in cervical mucus or basal body temperature.

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Arthralgia (from Greek arthro-, joint + -algos, pain) literally means joint pain;[1][2] it is a symptom of injury, infection, illnesses (in particular arthritis) or an allergic reaction to medication.[3]

According to MeSH, the term “arthralgia” should only be used when the condition is non-inflammatory, and the term “arthritis” should be used when the condition is inflammatory.[4]

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Arthritis (from Greek arthro-, joint + -itis, inflammation; plural: arthritides) is a form of joint disorder that involves inflammation of one or more joints.[1]

There are over 100 different forms of arthritis.[2][3] The most common form, osteoarthritis (degenerative joint disease), is a result of trauma to the joint, infection of the joint, or age. Other arthritis forms are rheumatoid arthritis, psoriatic arthritis, and related autoimmune diseases. Septic arthritis is caused by joint infection.

The major complaint by individuals who have arthritis is joint pain. Pain is often a constant and may be localized to the joint affected. The pain from arthritis is due to inflammation that occurs around the joint, damage to the joint from disease, daily wear and tear of joint, muscle strains caused by forceful movements against stiff painful joints and fatigue.

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Learning disability is a classification including several areas of functioning in which a person has difficulty learning in a typical manner, usually caused by an unknown factor or factors. While learning disability and learning disorder are often used interchangeably, the two differ. Learning disability is when a person has significant learning problems in an academic area. These problems, however, are not enough to warrant an official diagnosis. Learning disorder, on the other hand, is an official clinical diagnosis, whereby the individual meets certain criteria, as determined by a professional (psychologist, pediatrician, etc.) The difference is in degree, frequency, and intensity of reported symptoms and problems, and thus the two should not be confused.

The unknown factor is the disorder that affects the brain‘s ability to receive and process information. This disorder can make it problematic for a person to learn as quickly or in the same way as someone who is not affected by a learning disability. People with a learning disability have trouble performing specific types of skills or completing tasks if left to figure things out by themselves or if taught in conventional ways.

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Lymphedema (lymphoedema in British English), also known as lymphatic obstruction, is a condition of localized fluid retention and tissue swelling caused by a compromised lymphatic system. The lymphatic system returns the interstitial fluid to the thoracic duct and then to the bloodstream, where it is recirculated back to the tissues. Tissues with lymphedema are at risk of infection.

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Neck pain (or cervicalgia) is a common problem, with two-thirds of the population having neck pain at some point in their lives.[1]

Neck pain, although felt in the neck, can be caused by numerous other spinal problems. Neck pain may arise due to muscular tightness in both the neck and upper back, or pinching of the nerves emanating from the cervical vertebrae. Joint disruption in the neck creates pain, as does joint disruption in the upper back.

The head is supported by the lower neck and upper back, and it is these areas that commonly cause neck pain. The top three joints in the neck allow for most movement of your neck and head. The lower joints in the neck and those of the upper back create a supportive structure for your head to sit on. If this support system is affected adversely, then the muscles in the area will tighten, leading to neck pain.

Neck pain may also arise from many other physical and emotional health problems.

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Pelvic pain is a symptom that can affect both women and men. The pelvic pain that persists for a period of 6 months or more to be considered chronic while less than this duration is considered acute. The pain may indicate the existence of poorly-understood conditions that likely represent abnormal psychoneuromuscular function. Differentiating between acute and chronic pain is important in understanding chronic pelvic pain syndromes. Acute pain is most common, often experienced by patients after surgery or other soft tissue traumas. It tends to be immediate, severe and short lived however, pain that extends beyond a normal recovery period and lasts longer than 3–6 months constitutes chronic pain.[1]

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Scars are areas of fibrous tissue (fibrosis) that replace normal skin after injury. A scar results from the biological process of wound repair in the skin and other tissues of the body. Thus, scarring is a natural part of the healing process. With the exception of very minor lesions, every wound (e.g. after accident, disease, or surgery) results in some degree of scarring. An exception to this is animals with regeneration, which do not form scars and the tissue will grow back exactly as before.

Scar tissue is the same protein (collagen) as the tissue that it replaces,[1] but the fiber composition of the protein is different; instead of a random basketweave formation of the collagen fibers found in normal tissue,[1] in fibrosis the collagen cross-links and forms a pronounced alignment in a single direction.[1] This collagen scar tissue alignment is usually of inferior functional quality to the normal collagen randomised alignment. For example, scars in the skin are less resistant to ultraviolet radiation, and sweat glands and hair follicles do not grow back within scar tissue.[2] A myocardial infarction, commonly known as a heart attack, causes scar formation in the heart muscle, which leads to loss of muscular power and possibly heart failure. However, there are some tissues (e.g. bone) that can heal without any structural or functional deterioration.

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Posttraumatic stress disorder[note 1] (PTSD) is a severe anxiety disorder that can develop after exposure to any event that results in psychological trauma.[1][2][3] This event may involve the threat of death to oneself or to someone else, or to one’s own or someone else’s physical, sexual, or psychological integrity,[1] overwhelming the individual’s ability to cope. As an effect of psychological trauma, PTSD is less frequent and more enduring than the more commonly seen post traumatic stress (also known as acute stress response)[4] . Diagnostic symptoms for PTSD include re-experiencing the original trauma(s) through flashbacks or nightmares, avoidance of stimuli associated with the trauma, and increased arousal—such as difficulty falling or staying asleep, anger, and hypervigilance. Formal diagnostic criteria (both DSM-IV-TR and ICD-10) require that the symptoms last more than one month and cause significant impairment in social, occupational, or other important areas of functioning.[1]

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Radicular pain, or radiculitis, is pain “radiated” along the dermatome (sensory distribution) of a nerve due to inflammation or other irritation of the nerve root (radiculopathy) at its connection to the spinal column. A common form of radiculitis is sciatica – radicular pain that radiates along the sciatic nerve from the lower spine to the lower back, gluteal muscles, back of the upper thigh, calf, and foot as often secondary to nerve root irritation from a spinal disc herniation or from osteophytes in the lumbar region of the spine.

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Sciatica (play /sˈætɪkə/; sciatic neuritis)[1] is a set of symptoms including pain that may be caused by general compression or irritation of one of five spinal nerve roots that give rise to each sciatic nerve, or by compression or irritation of the left or right or both sciatic nerves. The pain is felt in the lower back, buttock, or various parts of the leg and foot. In addition to pain, which is sometimes severe, there may be numbness, muscular weakness, pins and needles or tingling and difficulty in moving or controlling the leg. Typically, the symptoms are only felt on one side of the body. Pain can be severe in prolonged exposure to cold weather.

Although sciatica is a relatively common form of low back pain and leg pain, the true meaning of the term is often misunderstood. Sciatica is a set of symptoms rather than a diagnosis for what is irritating the root of the nerve, causing the pain. This point is important, because treatment for sciatica or sciatic symptoms often differs, depending upon the underlying cause of the symptoms and pain levels.

The first known use of the word sciatica dates to 1451.[2]

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Scoliosis (from Ancient Greek: σκολίωσις skoliosis “obliquity, bending”)[1] is a medical condition in which a person’s spine is curved from side to side. Although it is a complex three-dimensional deformity, on an X-ray, viewed from the rear, the spine of an individual with scoliosis may look more like an “S” or a “C”, rather than a straight line. Scoliosis is typically classified as either congenital (caused by vertebral anomalies present at birth), idiopathic (cause unknown, subclassified as infantile, juvenile, adolescent, or adult, according to when onset occurred), or neuromuscular (having developed as a secondary symptom of another condition, such as spina bifida, cerebral palsy, spinal muscular atrophy, or physical trauma). A lesser-known cause of scoliosis could be a condition called Chiari malformation.

Recent longitudinal studies reveal that the most common form of the condition, late-onset idiopathic scoliosis, is physiologically harmless and self-limiting.[2][3] The rarer forms of scoliosis pose risks of complications.

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A sleep disorder, or somnipathy, is a medical disorder of the sleep patterns of a person or animal. Some sleep disorders are serious enough to interfere with normal physical, mental and emotional functioning. Polysomnography is a test commonly ordered for some sleep disorders.

Disruptions in sleep can be caused by a variety of issues, from teeth grinding (bruxism) to night terrors. When a person suffers from difficulty in sleeping with no obvious cause, it is referred to as insomnia.[1] In addition, sleep disorders may also cause sufferers to sleep excessively, a condition known as hypersomnia. Management of sleep disturbances that are secondary to mental, medical, or substance abuse disorders should focus on the underlying conditions.

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Sports injuries are injuries that occur in athletic activities. In many cases, these types of injuries are often due to overuse or acute trauma of a part of the body when participating in a certain activity. For example, runner’s knee is a painful condition generally associated with running, while tennis elbow is a form of repetitive stress injury at the elbow. Other types of injuries can be caused by a hard contact with something. This can often cause a broken bone or torn ligament or tendon

Injuries are a common occurrence in professional sports and most teams have a staff of Athletic Trainers and close connections to the medical community. Controversy has arisen at times when teams have made decisions that could threaten a players long-term health for short term gain.

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Chronic stress is the response to emotional pressure suffered for a prolonged period over which an individual perceives he or she has no control. It involves an endocrine system response in which occurs a release of corticosteroids. If this continues for a long time, it can cause damage to an individual’s physical and mental health.

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Dysphagia is the medical term for the symptom of difficulty in swallowing.[1][2][3] Although classified under “symptoms and signs” in ICD-10,[4] the term is sometimes used as a condition in its own right.[5][6][7] Sufferers are sometimes unaware of their dysphagia.[8][9]

It is derived from the Greek dys meaning bad or disordered, and phago meaning “eat”. It may be a sensation that suggests difficulty in the passage of solids or liquids from the mouth to the stomach,[10] a lack of pharyngeal sensation, or various other inadequacies of the swallowing mechanism. Dysphagia is distinguished from other symptoms including odynophagia, which is defined as painful swallowing,[11] and globus, which is the sensation of a lump in the throat. A psychogenic dysphagia is known as phagophobia.

It is also worthwhile to refer to the physiology of swallowing in understanding dysphagia.

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Tinnitus (play /tɪˈntəs/ or /ˈtɪnɪtəs/; from the Latin word tinnītus meaning “ringing“) is the perception of sound within the human ear in the absence of corresponding external sound. Tinnitus is not a disease, but a condition that can result from a wide range of underlying causes: neurological damage (multiple sclerosis), ear infections, oxidative stress,[1] foreign objects in the ear, nasal allergies that prevent (or induce) fluid drain, or wax build-up. Withdrawal from benzodiazepines may cause tinnitus as well. In-ear earphones, whose sound enters directly into the ear canal without any opportunity to be deflected or absorbed elsewhere, are a common cause of tinnitus when volume is set beyond moderate levels.

Tinnitus may be an accompaniment of sensorineural hearing loss or congenital hearing loss, or it may be observed as a side effect of certain medications. However, the most common cause is noise-induced hearing loss.

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Torticollis, or wry neck, is a stiff neck associated with muscle spasm, classically causing lateral flexion contracture of the cervical spine musculature (a condition in which the head is tilted to one side). The muscles affected are principally those supplied by the spinal accessory nerve.

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Plagiocephaly is a condition characterized by an asymmetrical distortion (flattening of one side) of the skull.[1]

Plagiocephaly is the word that is used to describe a diagonal asymmetry across the head shape. This word particularly describes a flattening which is to one side at the back of the head and there is often some facial asymmetry. Brachycephaly describes a very wide head shape with a flattening across the whole back of the head.[2]

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Temporomandibular joint disorder, TMJD (in the medical literature TMD), or TMJ syndrome, is an umbrella term covering acute or chronic pain, especially in the muscles of mastication and/or inflammation of the temporomandibular joint, which connects the mandible to the skull. The primary cause is muscular hyper- or parafunction, as in the case of bruxism, with secondary effects on the oral musculoskeletal system, like various types of displacement of the disc in the temporomandibular joint. The disorder and resultant dysfunction can result in significant pain, which is the most common TMD symptom, combined with impairment of function. Because the disorder transcends the boundaries between several health-care disciplines — in particular, dentistry and neurology — there are a variety of treatment approaches.

The temporomandibular joint is susceptible to many of the conditions that affect other joints in the body, including ankylosis, arthritis, trauma, dislocations, developmental anomalies, neoplasia and reactive lesions.[1]

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Urinary incontinence (UI), also known as involuntary urination, is any leakage of urine. It is a common and distressing problem, which may have a large impact on quality of life. Urinary incontinence is often a result of an underlying medical condition but is under-reported to medical practitioners.[1] Enuresis is often used to refer to urinary incontinence primarily in children, such as nocturnal enuresis (bed wetting).[2]

There are four main types of incontinence:[3]

Treatments include pelvic floor muscle training, bladder training, and electrical stimulation.[4] The benefit of medications is small and long term safety is unclear.[4]

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Whiplash is a non-medical term describing a range of injuries to the neck caused by or related to a sudden distortion of the neck[1] associated with extension.[2] The term “whiplash” is a colloquialism. “Cervical acceleration-deceleration” (CAD) describes the mechanism of the injury, while the term “whiplash associated disorders” (WAD) describes the injury sequelae and symptoms.

Whiplash is commonly associated with motor vehicle accidents, usually when the vehicle has been hit in the rear;[3] however, the injury can be sustained in many other ways, including headbanging, falls from stools, bicycles[citation needed], or horses. It stands out as one of the main injuries covered by the car insurers.[citation needed] In the United Kingdom, 430,000 people made a claim for whiplash in 2007, accounting for 14% of every driver’s premium.[4]

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