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  2. Essential tremor - Wikipedia

    en.wikipedia.org/wiki/Essential_tremor

    Actress Katharine Hepburn (1907–2003) had an essential tremor, possibly inherited from her grandfather, [92] that caused her head—and sometimes her hands—to shake. [ 93 ] [ 94 ] [ 95 ] The tremor was noticeable by the time of her performance in the 1979 film The Corn Is Green , when critics mentioned the "palsy that kept her head ...

  3. Tremor - Wikipedia

    en.wikipedia.org/wiki/Tremor

    A classic symptom is a characteristic fine tremor in the hands, which is traditionally described as a "pill-rolling" action of the hands, [3] but Parkinsonian tremor may also affect the arms, chin, lips, legs, and trunk, and can be markedly increased by stress or emotion. Onset is generally after age 60.

  4. Neural oscillation - Wikipedia

    en.wikipedia.org/wiki/Neural_oscillation

    A tremor is an involuntary, somewhat rhythmic, muscle contraction and relaxation involving to-and-fro movements 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 cords, trunk, and legs. Most tremors occur in the hands.

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  6. List of Internet phenomena - Wikipedia

    en.wikipedia.org/wiki/List_of_Internet_phenomena

    This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources. Internet An Opte Project visualization of routing paths through a portion of the Internet General Access Activism Censorship Data activism Democracy Digital divide Digital rights Freedom Freedom of information Internet phenomena Net ...

  7. Harlem Shake (meme) - Wikipedia

    en.wikipedia.org/wiki/Harlem_Shake_(meme)

    The video opens with the first use of the Harlem Shake meme, [3] [6] and started a viral trend of people uploading their own "Harlem Shake" videos to YouTube. [10] Despite its name, the meme does not actually involve participants performing the original Harlem Shake dance, a street and hip hop dance that originated in 1980s Harlem, New York City.

  8. Hand arm vibrations - Wikipedia

    en.wikipedia.org/wiki/Hand_arm_vibrations

    In occupational safety and health, hand arm vibrations (HAVs) are a specific type of occupational hazard which can lead to hand–arm vibration syndrome (HAVS). HAVS, also known as vibration white finger ( VWF ) or dead finger , [ 1 ] is a secondary form of Raynaud's syndrome , an industrial injury triggered by continuous use of vibrating hand ...

  9. Head shake - Wikipedia

    en.wikipedia.org/wiki/Head_shake

    A head shake is a gesture in which the head is turned left and right along the transverse plane repeatedly in quick succession. In many cultures, it is most commonly, [1] but not universally, used to indicate disagreement, denial, or rejection. It can also signify disapproval or upset at a situation, often with slower movement.