Being exposed to high temperatures for long periods of time or engaging in vigorous activities in high temperatures can lead to heat exhaustion or heat stroke, especially if you are dehydrated or are taking certain medications such as antihistamines, blood pressure medication, or antidepressants.
Usually sweat evaporates from the skin to help cool the body. It is harder for sweat to evaporate if:
Heat exhaustion is a less serious condition than heat stroke. Symptoms can include:
To respond to heat exhaustion:
Heat stroke is an emergency situation in which the body loses its ability to cool itself. The internal body temperature rises to extremes, sometimes as high as 106 degrees F. Heat stroke can result in death if not treated promptly. Symptoms include:
If body temperatures aren't reduced, symptoms can progress to:
To respond to heat stroke, CALL 911 or go to the closest emergency room. While waiting for EMS:
Stay hydrated by drinking lots of non-alcoholic, non-caffeinated beverages, even if you're not thirsty. Water is good, but sports drinks are better if you are engaging in vigorous activity in high temperatures.
Heat Stroke
Preventing Heat Exhaustion and Heat Stroke
![]() |
Monday - Friday, 8am to 5pm by appointment |
![]() |
(512) 471-4955 |
![]() |
Email UHS |
University Health Services is committed to providing high-quality care to patients of all ages, races, ethnicities, physical abilities or attributes, religions, sexual orientations, or gender identities/expression.
100 West Dean Keeton Student Services Building (SSB)