Prevent Heat Related Illness and Heat Stroke

How Do I Prevent Heat Stroke?

When the weather first turns hot is the worst time for heat stroke. Your body will not be used to the heat and you may not remember how important it is to keep cool. 

When possible, avoid working in hot areas and in full sun in the hottest part of the day. Try to work in the shade or cooler areas when the day is the most hot.  This is usually around 3 pm in the summer in Canada. 

Take regular breaks in a shaded area or a cooler area to ensure your body temperature has a chance to go back down to a comfortable level. 

Start work in a well-hydrated state and try to maintain this throughout the day. To prevent heat stroke drink lots of water before you start work, continue through the day and even on your way home. You may not feel thirsty but keep drinking anyway.

If you don’t have the water in your body to produce enough sweat to cool yourself down you are in big trouble. It can take 3 or 4 hours to get the water you need back into your system after sweating, so don’t get behind in your water consumption. Your dehydration may carry over from one day to the next if you don’t drink enough after work.

Limit time spent working or exercising in heat until you’re conditioned to it. People who are not used to working in hot weather are especially susceptible to heat-related illness. It can take several weeks for your body to adjust to hot weather.

Wear loose-fitting, lightweight clothing.

Open doors and use fans if available to increase air movement.  

Ensure you are aware of the signs and symptoms of heat related illness.  Remove yourself if you feel ill and look for the signs in other workers. 

There is no one legal limit for working in the heat in Canada.  Most jurisdictions use the ACGIH recommendations. 


7 thoughts on “Prevent Heat Related Illness and Heat Stroke”

  1. Very good training for the WHMIS certification. Well done and informative.
    Thank you for good sevice.

  2. I found your WHIMIS training very interesting and informative .I also read through your HEAT STROKE prevention wonderful to know weather at work or not THANK-YOU

  3. found your site very informative, & well documented. i enjoyed your online whmis training & would like to know if you have a cd available for training purpose. I await your reply.
    thank you.

    1. Hi: We can make up a CD for you and customize it for your company with your logo and other company specific requirements.

      1. I am suprised by your willingness to help…. I just went through your online WHMIS as well and found it very helpful and well done. I too would love a little help applying this to the company and teaching all our employees.
        I am also willing to pay a fee for this service… this is exceptional services you provide!

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