Surprising facts about dehydration, heat exhaustion and heat stroke
- Thirst – As soon as you feel thirsty, know that dehydration is underway.
- Reduced urination – If you don’t have to urinate while in the heat, you need to drink more fluids.
- Headache – Once your head starts to hurt, you’re likely entering the next phase of heat-related illness – heat exhaustion.
- Headache – As a heat-related illness progresses, a headache may become more severe.
- Dizziness or lightheadedness – Shakiness and a feeling of instability or weakness often accompanies heat exhaustion.
- Nausea or vomiting – The body prepares for systemic shut down by purging contents in the stomach, including liquids, which can lead to a faster deterioration of health through further dehydration.
- Reduced urination – As your body tries to regulate your temperature, it begins to shut down organs, like your kidneys. This can lead to acute kidney injury, Dr. Solti-Grasz warns.
- Fainting – This is the body’s way of taking over to protect vital organs against loss of fluids.
Published August 14, 2017
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