Category: Rare & Lesser-Known

Cyclic vomiting syndrome (CVS) is a condition characterized by recurrent episodes of intense nausea and vomiting that occur in a repeating or cyclical pattern. These episodes are separated by periods of relative wellness, during which a person may feel mostly or completely normal.

This article provides an educational overview of cyclic vomiting syndrome, how it is generally described, and how it differs from other digestive conditions. It does not provide medical advice, diagnosis, or treatment.

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Persistent postural dizziness is a term used to describe ongoing sensations of dizziness, unsteadiness, or imbalance that are typically present when a person is upright and may ease when lying down. The experience is often described as persistent rather than episodic and may fluctuate in intensity throughout the day.

This article provides an educational, non-clinical overview of what persistent postural dizziness is, how it is commonly described, and how it is discussed in neurological and balance-related health education. It does not provide medical advice, diagnosis, or treatment.

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Chronic dizziness syndrome is a broad, non-specific term sometimes used to describe ongoing or frequently recurring sensations of dizziness, imbalance, or unsteadiness that persist over a long period of time. Rather than referring to a single, clearly defined medical condition, the phrase is often used descriptively to capture persistent dizziness-related experiences that do not resolve quickly.

The term focuses on duration and impact, not on a specific diagnosis or cause.

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Restless Body Syndrome is a lesser-known term used to describe a pattern of persistent physical restlessness that affects the body as a whole rather than a single area. It is characterized by an ongoing urge to move, shift position, or adjust posture, often without a clear external reason. The restlessness may feel internal, subtle, or difficult to explain.

This article provides an educational, non-clinical overview of what Restless Body Syndrome refers to, how it may present, and how it can influence daily experiences. It does not provide medical advice, diagnosis, or treatment.

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Essential tremor is a neurological condition characterized by involuntary, rhythmic shaking, most commonly affecting the hands or arms. The tremor typically occurs during movement or when maintaining a posture, such as holding an object, writing, or reaching for something.

Essential tremor is considered one of the most common movement-related neurological conditions, yet it is often misunderstood or mistaken for other causes of shaking. This article explains essential tremor for educational purposes only and does not provide medical advice, diagnosis, or treatment.

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Orthostatic intolerance is a condition in which a person experiences symptoms when standing upright that improve when they sit down or lie flat. The term “orthostatic” refers to an upright posture, while “intolerance” describes difficulty tolerating that position. This article provides a clear, educational overview of orthostatic intolerance to explain what it is, how it is commonly described, and how it can affect daily life, without offering medical advice, diagnosis, or treatment.

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Small fiber neuropathy is a neurological condition that affects the small nerve fibers responsible for transmitting pain, temperature, and certain automatic body signals. These small fibers play a key role in how the body senses heat, cold, and discomfort, as well as in regulating functions such as sweating and blood flow. When these fibers are impaired, sensory experiences and physical sensations may change.

This article provides education-only, evergreen information to explain what small fiber neuropathy is, how it is commonly described, and how it may affect daily life. It does not provide medical advice, diagnosis, or treatment.

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Idiopathic hypersomnia is a rare sleep-related condition characterized by excessive daytime sleepiness that is not explained by another medical, neurological, or sleep disorder. People with idiopathic hypersomnia often feel persistently sleepy despite getting what appears to be adequate or even extended amounts of nighttime sleep.

This article provides education-only, evergreen information to explain what idiopathic hypersomnia is, how it is commonly described, and how it may affect daily life. It does not provide medical advice, diagnosis, or treatment.

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Chronic hives, also known as chronic urticaria, is a skin condition characterized by raised, itchy welts that appear on the skin and persist or recur over a long period of time. These welts, commonly called hives, may come and go but are considered chronic when they last for six weeks or longer.

This article provides a clear, educational overview of what chronic hives is. It is intended for general information only and does not offer medical advice, diagnosis, or treatment.

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