As we face the season’s first big heatwave, a Bancroft NeuroRehab nurse shares tips to protect yourself against the sun’s rays and high heat and humidity.
By Rosalie Knapp, BSN, RN
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Wear Sunscreen
Exposure to the sun’s ultraviolet rays for as little as 15 minutes can cause skin damage and skin cancer, so using sunscreen is critical.
- Use sunscreen of at least SPF 15, even on cloudy days or stay in the shade.
- Sunscreen products with SPF 30 or higher are recommended for individuals performing outdoor work, sports, or recreational activities.
- Apply sunscreen every 2 hours if you are out in the sun and after swimming.
- Sunscreen without expiration dates have a shelf life of 3 years or less but even shorter if the sunscreen has been out in high temperatures.
Wear protective clothing
- A typical T-shirt has an SPF rating of lower than 15. Use other protection as well. A wet T-shirt offers less protection than a dry one.
- Wear a hat with a brim that will shade your face, ear and back of the neck. If wearing a baseball cap, use other protective clothing that will cover the back of your neck.
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Wear Sunglasses
- Wearing glasses that block both UVA and UVB rays will decrease the risk of cataracts that can be caused by UV rays.
Know the Signs of Heatstroke
Heatstroke is a serious condition that occurs when your body overheats, often because of prolonged exposure or overexertion.
- Muscle cramping might be the first sign
- High body temperature (above 103°F)
- Hot, red, dry or moist skin
- Rapid pulse
- Possibility of unconsciousness
This is a medical emergency; call 9-1-1 if you suspect someone is experiencing heatstroke.
You should move the person to a cooler area, and apply cool cloths to reduce body temperature. Do not give fluids.
Visit the CDC online for more information on summer safety.