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  2. Chalkboard scraping - Wikipedia

    en.wikipedia.org/wiki/Chalkboard_scraping

    In contrast, humans are less averse to the white noise than to scraping. [4] A 1986 study used a tape-recording of a three-pronged garden tool similar to a fork being "grided" across a chalkboard, which roughly reproduces the sound of fingernails on chalkboard. The recording was then manipulated, removing pitches at the extremities and the median.

  3. Joint cracking - Wikipedia

    en.wikipedia.org/wiki/Joint_cracking

    Cracking finger joints makes a distinct cracking or popping sound. Joint cracking is the manipulation of joints to produce a sound and related "popping" sensation. It is sometimes performed by physical therapists , chiropractors , and osteopaths [ 1 ] pursuing a variety of outcomes.

  4. Hand arm vibrations - Wikipedia

    en.wikipedia.org/wiki/Hand_arm_vibrations

    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-held machinery. Use of the term vibration white finger has generally been superseded in professional usage by broader concept of HAVS, although it is still used by the ...

  5. Doctors Say This Nighttime Behavior Can Be A Sign Of Dementia

    www.aol.com/lifestyle/doctors-nighttime-behavior...

    There are plenty of reason you might feel off in the late afternoon and evening. Maybe you’re mentally wiped after socializing all day, or your brain is fried from hours of work.

  6. Signs and symptoms of Parkinson's disease - Wikipedia

    en.wikipedia.org/wiki/Signs_and_symptoms_of...

    It is a pronation–supination tremor that is described as "pill-rolling"; that is, the index finger of the hand tends to get into contact with the thumb, and they perform a circular movement together. [1] [2] Such term was given due to the similarity of the movement in PD patients with the former pharmaceutical technique of manually making ...

  7. Things Boomers Took for Granted That are Obsolete Now

    www.aol.com/things-boomers-took-granted-obsolete...

    Then, 56k dial-up modems were associated with crushingly slow speeds, long startup times, frequent crashes, and the painful sound of digital gears grinding through telephone lines.

  8. Moral Injury: The Grunts - The Huffington Post

    projects.huffingtonpost.com/moral-injury/the...

    Some troops leave the battlefield injured. Others return from war with mental wounds. Yet many of the 2 million Iraq and Afghanistan veterans suffer from a condition the Defense Department refuses to acknowledge: Moral injury.

  9. List of gestures - Wikipedia

    en.wikipedia.org/wiki/List_of_gestures

    Simultaneous finger guns with both hands can also be used to underscore the punchline of a joke, something of a visual equivalent to a "rimshot" sound effect. Finger heart is a hand gesture in which the subject has a palm up fist, raises their index finger and brings their thumb over it so as to form a small heart shape. It signals a similar ...