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Heat Stress

  • Issued: May 2010
  • Revised: February 2014
  • Content last reviewed: February 2014

Heat stress can happen when hot, humid conditions and physical activity overcomes your body’s natural cooling system. You might suffer cramps and fainting, or even serious heat exhaustion and heat stroke. Heat stroke can kill quickly.



  • Health & Safety Ontario: Infrastructure Health and Safety Association (IHSA): Heat Stress


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