Hand Arm Vibration Syndrome (HAVS) or Vibration White Finger, is an industrial disease caused by the continuous use of vibrating hand-held tools and equipment such as; chainsaws, pneumatic drills and power drills. This disease effects people numbered in the tens of thousands. The condition affects the nerves, muscles, arm joints and blood vessels after extensive exposure to vibration frequencies of between 5 and 2000 Hz, although the greatest risk exists between the frequencies of 5 and 150 Hz.
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