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Heat stress: Don’t underestimate the danger



Heat is a leading weather-related killer, according to the National Weather Service, and Heat Awareness Day on May 23 is a good opportunity to think about strategies to avoid heat-related illnesses.

Extremely hot and humid weather makes it difficult for the body to regulate itself, and those who expect to be outdoors for personal or business activities should take precautions to avoid heat stress. Heat-related illnesses can range from heat cramps to heat exhaustion and heat stroke, which is a serious health emergency.

Infants and children, the elderly and people with certain chronic health conditions or who take certain prescription medications are at greater risk from heat stress. Construction workers and others who must work in hot environments should take extra precautions, especially if they are required to wear heavy protective clothing on the job.

Signs of heat exhaustion

If you are working or playing outdoors, monitor for signs of heat exhaustion, which can lead to heat stroke:

  • Heavy sweating
  • Paleness
  • Muscle cramps
  • Tiredness
  • Weakness
  • Dizziness
  • Headache
  • Nausea or vomiting
  • Fainting
  • Skin: may be cool and moist
  • Pulse rate: fast and weak
  • Breathing: fast and shallow

Protect yourself:

  • Drink cool, nonalcoholic beverages. If you take medications or are on a liquid-restricted diet, ask your doctor for advice. Avoid extremely cold liquids that can cause cramps.
  • Rest.
  • Take a cool shower, bath or sponge bath.
  • If possible, seek an air-conditioned environment. If you don’t have air conditioning, consider visiting an air-conditioned shopping mall or public library to cool off; some communities open cooling shelters when the heat index reaches a specified level.
  • Wear lightweight clothing.
  • If possible, remain indoors in the heat of the day.
  • Do not engage in strenuous activities.

For those who must work outdoors in the heat, employers should consider:

  • Adjust work schedules; perform work during cooler hours of the day (early morning or evening) if possible.
  • Mandate work slowdowns as needed.
  • Rotate personnel: alternate job functions to minimize overstress or overexertion at one task.
  • Provide shelter (air-conditioned, if possible) or shaded areas as a respite area for employees.
  • Maintain workers’ body fluids at normal levels.

The Occupational Safety and Health Administration offers a free app for iPhone and Android smartphones to help assess when the heat index requires you to take protective action. Find them in the app store for your device; more information is available from OSHA.

Submitted by Troy Dohmeyer and Linda Poulemanos

Posted 11:06 AM

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