It’s more than just miserably hot across most of the United States. It’s dangerously hot and could be deadly hot, especially for people who have to work outside. The Transport Workers (TWU) has developed a fact sheet on heat stress—in Spanish and English—that outlines some simple practices and warning signs of which you need to be aware.

Life-threatening problems can occur if your body is unable to stay cool enough in hot temperatures or high humidity. Heat stress causes a range of health effects, which can lower your job performance and even become life-threatening if left untreated.

Remember, don’t “tough it out.” A supervisor or coworker must take you to a cooler area immediately if you feel faint, dizzy or confused. It is a medical emergency!

Click here for the English version and here for the Spanish version.