Changes

==Origin==

==Origin==

[https://nordan.daynal.org/wiki/index.php?title=English#ca._1100-1500_.09THE_MIDDLE_ENGLISH_PERIOD Middle English] ''tremour'', from Anglo-French ''tremor'', from [[Latin]], from ''tremere''

[https://nordan.daynal.org/wiki/index.php?title=English#ca._1100-1500_.09THE_MIDDLE_ENGLISH_PERIOD Middle English] ''tremour'', from Anglo-French ''tremor'', from [[Latin]], from ''tremere''

*[http://en.wikipedia.org/wiki/14th_century 14th Century]  

*[https://en.wikipedia.org/wiki/14th_century 14th Century]  

==Definitions==

==Definitions==

*1a : a trembling or shaking usually from [[physical]] [[weakness]], emotional [[stress]], or [[disease]]  

*1a : a trembling or shaking usually from [[physical]] [[weakness]], emotional [[stress]], or [[disease]]  

:b : a cause of such a [[feeling]]  

:b : a cause of such a [[feeling]]  

==Description==

==Description==

A '''tremor''' is an involuntary, somewhat rhythmic, [http://en.wikipedia.org/wiki/Muscle_contraction muscle contraction] and [[relaxation]] involving to-and-fro movements (oscillations or twitching) of one or more [[body]] parts. It is the most common of all involuntary movements and can affect the hands, arms, eyes, face, head, vocal folds, trunk, and legs. Most tremors occur in the hands. In some people, tremor is a [[symptom]] of another [http://en.wikipedia.org/wiki/Neurology neurological] disorder. A very common kind of tremor is the chattering of teeth, usually induced by cold temperatures or by [[fear]].

A '''tremor''' is an involuntary, somewhat rhythmic, [https://en.wikipedia.org/wiki/Muscle_contraction muscle contraction] and [[relaxation]] involving to-and-fro movements (oscillations or twitching) of one or more [[body]] parts. It is the most common of all involuntary movements and can affect the hands, arms, eyes, face, head, vocal folds, trunk, and legs. Most tremors occur in the hands. In some people, tremor is a [[symptom]] of another [https://en.wikipedia.org/wiki/Neurology neurological] disorder. A very common kind of tremor is the chattering of teeth, usually induced by cold temperatures or by [[fear]].

Tremor can be a [[symptom]] associated with disorders in those parts of the [[brain]] that control [[muscles]] throughout the [[body]] or in particular areas, such as the hands. Neurological disorders or conditions that can produce tremor include [http://en.wikipedia.org/wiki/Multiple_sclerosis multiple sclerosis], [http://en.wikipedia.org/wiki/Stroke stroke], [http://en.wikipedia.org/wiki/Traumatic_brain_injury traumatic brain injury], [http://en.wikipedia.org/wiki/Chronic_kidney_disease chronic kidney disease] and a number of neurodegenerative diseases that damage or destroy parts of the brainstem or the [http://en.wikipedia.org/wiki/Cerebellum cerebellum], [http://en.wikipedia.org/wiki/Parkinson%27s_disease Parkinson's disease] being the one most often associated with tremor. Other causes include the use of [[drugs]] (such as amphetamines, caffeine, corticosteroids, SSRI), alcohol abuse or withdrawal, mercury poisoning; this is also in infants with phenylketonuria (PKU), overactive thyroid or liver failure. Tremors can be an indication of [http://en.wikipedia.org/wiki/Hypoglycemia hypoglycemia], along with palpitations, sweating and [[anxiety]]. Tremor can also be caused from lack of [[sleep]], lack of vitamins, or increased [[stress]]. Deficiencies of magnesium and thiamine have also been known to cause tremor or shaking, which resolves when the deficiency is corrected. See [http://en.wikipedia.org/wiki/Magnesium_in_biology magnesium in biology]. Some forms of tremor are inherited and run in [[families]], while others have no known cause. Tremors can also be caused by some spider bites, e.g. the redback spider of Australia.

Tremor can be a [[symptom]] associated with disorders in those parts of the [[brain]] that control [[muscles]] throughout the [[body]] or in particular areas, such as the hands. Neurological disorders or conditions that can produce tremor include [https://en.wikipedia.org/wiki/Multiple_sclerosis multiple sclerosis], [https://en.wikipedia.org/wiki/Stroke stroke], [https://en.wikipedia.org/wiki/Traumatic_brain_injury traumatic brain injury], [https://en.wikipedia.org/wiki/Chronic_kidney_disease chronic kidney disease] and a number of neurodegenerative diseases that damage or destroy parts of the brainstem or the [https://en.wikipedia.org/wiki/Cerebellum cerebellum], [https://en.wikipedia.org/wiki/Parkinson%27s_disease Parkinson's disease] being the one most often associated with tremor. Other causes include the use of [[drugs]] (such as amphetamines, caffeine, corticosteroids, SSRI), alcohol abuse or withdrawal, mercury poisoning; this is also in infants with phenylketonuria (PKU), overactive thyroid or liver failure. Tremors can be an indication of [https://en.wikipedia.org/wiki/Hypoglycemia hypoglycemia], along with palpitations, sweating and [[anxiety]]. Tremor can also be caused from lack of [[sleep]], lack of vitamins, or increased [[stress]]. Deficiencies of magnesium and thiamine have also been known to cause tremor or shaking, which resolves when the deficiency is corrected. See [https://en.wikipedia.org/wiki/Magnesium_in_biology magnesium in biology]. Some forms of tremor are inherited and run in [[families]], while others have no known cause. Tremors can also be caused by some spider bites, e.g. the redback spider of Australia.

Characteristics may include a rhythmic shaking in the hands, arms, head, legs, or trunk; shaky voice; difficulty writing or drawing; or problems holding and controlling utensils, such as a fork. Some tremors may be triggered by or become exaggerated during times of [[stress]] or strong [[emotion]], when the [[individual]] is physically [[exhausted]], or during certain [[posture]]s or movements.

Characteristics may include a rhythmic shaking in the hands, arms, head, legs, or trunk; shaky voice; difficulty writing or drawing; or problems holding and controlling utensils, such as a fork. Some tremors may be triggered by or become exaggerated during times of [[stress]] or strong [[emotion]], when the [[individual]] is physically [[exhausted]], or during certain [[posture]]s or movements.

Tremor may occur at any age but is most common in middle-age and older persons, typically around the age of 52–61. It may be occasional, temporary, or occur intermittently. Tremor affects men and women equally.[http://en.wikipedia.org/wiki/Tremor]

Tremor may occur at any age but is most common in middle-age and older persons, typically around the age of 52–61. It may be occasional, temporary, or occur intermittently. Tremor affects men and women equally.[https://en.wikipedia.org/wiki/Tremor]

==See also==

==See also==

*'''''[http://en.wikipedia.org/wiki/Earthquake Earthquake]'''''

*'''''[https://en.wikipedia.org/wiki/Earthquake Earthquake]'''''

[[Category: Health]]

[[Category: Health]]