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Children are at risk
Extreme heat, and heat related illnesses, are especially dangerous for infants and young children.
Heat illnesses include heat stroke, heat exhaustion, heat fainting, heat edema (swelling of the hands, feet and ankles), heat rash (prickly heat) and heat cramps (muscle cramps). They are mainly caused by over-exposure to heat or over-exertion in the heat, and if not prevented, can lead to long-term health problems and even death.
Children most at risk include those with breathing difficulties (asthma), heart conditions, kidney problems, mental and physical disabilities, developmental disorders, diarrhea, and those who take certain medications. Consult with your family doctor or pharmacist to find out if your child’s medication increases their risk of heat related illnesses.
Prepare for extreme heat
Tune in regularly to local weather forecasts and alerts so you know when to take extra care. You can even get official Government of Canada weather forecasts and alerts straight to your phone by downloading the WeatherCAN app.
If you have an air conditioner, make sure it works properly before the hot weather starts. Otherwise, find an air-conditioned spot near you that you can use to cool off for a few hours during extreme heat.
Learn about ways to keep your home cool during the summer and plan for the future. For example, if you live in a house, plant trees on the side where the sun hits the house during the hottest part of the day.
If you see any of these signs during extreme heat, immediately move the child to a cool place and give liquids. WATER IS BEST.
Watch your child’s health closely
Stay alert for symptoms of heat illness. They include:
- changes in behaviour (sleepiness or temper tantrums)
- dizziness or fainting
- nausea or vomiting
- rapid breathing and heartbeat
- extreme thirst
- decreased urination with unusually dark yellow urine
If you are breastfeeding your child, breast milk will provide adequate hydration, but remember to keep yourself hydrated so you can produce a sufficient amount of milk.
Heat stroke is a medical emergency! If you are caring for a child who has a high body temperature and is unconscious, confused or has stopped sweating, call 911 or your local emergency number immediately.
Keep your child hydrated
Dehydration is dangerous. Give plenty of cool liquids to drink, especially water, before your child feels thirsty.
- Make it fun—Leave a colourful glass by the sink and remind your child to drink after every hand washing.
- Make it healthy—Provide extra fruits and vegetables as they have a high water content.
- Make it routine—Encourage your child to drink water before and after physical activity.
WHILE WAITING FOR HELP, cool the child right away by:
- Moving them to a cool place.
- Applying cold water to large areas of the skin or clothing.
- Fanning the child as much as possible.
Keep your home cool
If you have an air conditioner with a thermostat, keep it set to the highest setting that is comfortable (somewhere between 22ºC and 26ºC), which will reduce your energy costs and provide needed relief. If you are using a window air conditioner, cool only one room where you can go for heat relief.
- Prepare meals that don’t need to be cooked in your oven.
- Block the sun by opening awnings and closing curtains or blinds during the day.
- If safe, open your windows at night to let cooler air into your home.
If your home is extremely hot
- Take a break from the heat and spend a few hours with your child in a cool place. It could be a tree-shaded area, swimming facility, spray pad or an air-conditioned spot such as a shopping mall, grocery store or public library.
- Bathe your child in a cool bath until your child feels refreshed. Always supervise your child in the bath.
- If using a fan, keep it at a safe distance from the child and aim the air flow in their direction.
Avoid exposing your child to extreme heat
Reschedule or find alternatives
Reschedule or plan outdoor activities during cooler parts of the day.
- Before heading out, check the Air Quality Health Index (AQHI) in your area, if available—children are more sensitive to air pollution, which tends to be at higher levels during extreme heat.
If you are in an area with mosquitoes or ticks, protect yourself with insect repellent:
- Use insect repellent that has DEET or icaridin.
- Follow the product instructions.
- For children younger than 12 years old, do not use a DEET product on a daily basis for more than a month.
- For infants younger than 6 months old, do not use an insect repellent containing DEET or icaridin. Instead, use a mosquito net when babies are outdoors in a crib or stroller.
Never leave children alone in a parked vehicle. When outside air temperature is 23ºC, the temperature inside a vehicle can be extremely dangerous—more than 50ºC.
Avoid sun exposure
- Dress your child in loose-fitting, light-coloured clothing made from a breathable fabric.
- Keep your child in the shade or protected from the sun by wearing a wide-brimmed, breathable hat or shade them with an umbrella.
- Tree-shaded areas could be as much as 5ºC cooler than the surrounding area.
- Limit your time in the sun.
- Use a broad spectrum sunscreen that is SPF30 or higher and follow the product instructions.
Remember, sunscreen will help protect against the sun’s ultraviolet (UV) rays but not from the heat.
- Ask your health professional about using sunscreens on babies who are under 6 months old.
- Sunscreen and insect repellents can be used safely together. Apply the sunscreen first, then the insect repellent.
Health Canada would like to give a little reminder to stay safe and keep cool as we head into hot weather over the next week.
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