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Difference between Heat Exhaustion and Flu

Difference between Heat Exhaustion and Flu


If you’re feeling hot, flushed, and dizzy, you may be wondering if you have the flu or heat exhaustion. While both conditions share some common symptoms, there are key differences between them. Here’s a look at the similarities and differences between heat exhaustion and flu.

What is Heat Exhaustion?

Heat exhaustion is a condition caused by overexposure to heat. It can occur when you are working or exercising in hot weather, or even if you are just sitting in a sauna or steam room.

  • Symptoms of heat exhaustion include heavy sweating, dizziness, headache, nausea, and vomiting. If untreated, heat exhaustion can lead to heat stroke, which can be fatal.
  • Heat stroke occurs when your body temperature rises to dangerous levels and your nervous system is affected. Symptoms of heat stroke include confusion, seizures, and loss of consciousness. If you think you or someone else is suffering from heat exhaustion or heat stroke, it is important to seek medical help immediately.
  • Heat exhaustion can be treated by drinking plenty of fluids and resting in a cool place. Heat stroke requires more intensive treatment and should be treated as a medical emergency.

What is Flu?

Flu, or influenza, is a respiratory illness caused by a virus. The flu is highly contagious and can cause severe symptoms, including fever, muscle aches, fatigue, and coughing.

  • Flu can also lead to pneumonia and other serious health complications. Flu season typically runs from October to May in the United States, with peak activity occurring in January or February.
  • Though anyone can get the flu, certain groups are at higher risk for serious complications, including young children, pregnant women, people with chronic medical conditions, and the elderly.
  • There is no one-size-fits-all approach to preventing the flu, but experts recommend getting a flu vaccine each year as the best way to protect yourself and others.

Difference between Heat Exhaustion and Flu

Heat exhaustion and the flu may seem similar, but there are some key differences between the two.

  • Heat exhaustion is caused by exposure to high temperatures, while the flu is a viral infection.
  • Heat exhaustion typically causes symptoms like dizziness, headache, and nausea, while the flu often includes fever, coughing, and body aches.
  • Heat exhaustion can be treated by moving to a cooler location and drinking fluids, while the flu requires rest and fluids as well as over-the-counter medication.
  • If you suspect you have heat exhaustion, it’s important to seek medical attention, as it can lead to more serious conditions like heat stroke.

If you think you might have the flu, contact your healthcare provider. Both heat exhaustion and the flu can be serious, so it’s important to be aware of the symptoms and seek treatment if needed.


Although heat exhaustion and the flu may share some common symptoms, it’s important to be able to distinguish between the two in order to get prompt treatment. If you think you or someone you know is experiencing heat exhaustion, take immediate action by getting out of the sun, drinking fluids, and resting. If you are worried about whether or not you have the flu, consult your doctor for a diagnosis and proper course of treatment.

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