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   Why do you get a fever if you have a high temperature?

   • It is part of your body's defense against infection-causing germs. You get a fever most often when your body is trying to kill infectious invaders such as viruses or bacteria. A higher body temperature helps the immune system respond more vigorously to the attack, and makes it harder for these microbes to survive.

   Fever in adults: when to worry - Harvard Health

   www.health.harvard.edu/diseases-and-conditions/treating-fever-in-adults

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   What happens if you have a high fever?

   • A very high fever can cause confusion, extreme sleepiness, irritability, and seizures. To help determine why you have a fever, your doctor will ask you about: recent travel, particularly travel abroad. By itself, fever is usually harmless, though a high fever can be miserable.

   Fever in adults: when to worry - Harvard Health

   www.health.harvard.edu/diseases-and-conditions/treating-fever-in-adults

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   What causes a high-grade fever?

   • Almost any infection can cause a high-grade fever, particularly if the body has not been exposed to the pathogen before and has no immunity to it. A high fever can also occur if certain infections are left untreated and either get worse or start to affect other organs. Infectious causes of high fever include:

   What Causes a High-Grade Fever and When Is It Too High? - Verywell …

   www.verywellhealth.com/when-is-a-fever-too-high-770347

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2. www.health.harvard.edu › treating-fever-in-adultsFever in adults: when to worry - Harvard Health

   www.health.harvard.edu › treating-fever-in-adults

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   May 22, 2023 · High-grade: 102.4 to 105.8 F (39.1 to 41 C). When to worry about fever. If you have a fever over 104°F (40°C), you should call your doctor. Seek medical help right away if you have a fever along with any of these symptoms: seizure; loss of consciousness; confusion; stiff neck; trouble breathing; severe pain anywhere in the body

   • Email: hhp_info@health.harvard.edu

3. www.medicalnewstoday.com › articles › 327320High blood pressure symptoms: When to seek medical help

   www.medicalnewstoday.com › articles › 327320

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   Dec 17, 2019 · Causes and risk factors. Prevention. Summary. Generally, high blood pressure does not cause any symptoms. If a person does experience symptoms, they may include headaches, dizziness, and sleep...

4. www.healthgrades.com › right-care › high-blood7 Symptoms Never to Ignore If You Have High Blood Pressure

   www.healthgrades.com › right-care › high-blood

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   Aug 19, 2020 · If you live with high blood pressure, it's important to tell your doctor about any symptoms that may indicate high blood pressure complications, including chest pain, headache, swollen feet, or memory loss. Your doctor can begin or change your treatment plan to control high blood pressure.

5. www.healthline.com › health › cold-fluFever in Adults: Characteristics, Types, and When It's Serious

   www.healthline.com › health › cold-flu

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   Sep 17, 2019 · Types. When it's serious. Causes. Treatments. When to go to the ER. Takeaway. You may need to get plenty of rest and drink fluids to help your body heal. But if you have a high or long-lasting...

6. www.verywellhealth.com › when-is-a-fever-too-highWhat Causes a High-Grade Fever and When Is It Too High?

   www.verywellhealth.com › when-is-a-fever-too-high

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   Mar 7, 2024 · Symptoms. When to Act. Home Treatment. If you are an adult with a fever over 103 F (39.4 C), you need to call your healthcare provider immediately. If it is over 105 F (40.5 C), you need to rush to your nearest emergency room. You may need to act even sooner when infants, children, older adults, and immunocompromised people have a fever.

7. www.mayoclinic.org › diseases-conditions › highHigh blood pressure (hypertension) - Symptoms & causes - Mayo ...

   www.mayoclinic.org › diseases-conditions › high

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   Feb 19, 2024 · Causes. Blood pressure is determined by two things: the amount of blood the heart pumps and how hard it is for the blood to move through the arteries. The more blood the heart pumps and the narrower the arteries, the higher the blood pressure. There are two main types of high blood pressure.

8. www.mayoclinic.org › symptoms-causes › syc-20376703Elevated blood pressure - Symptoms & causes - Mayo Clinic

   www.mayoclinic.org › symptoms-causes › syc-20376703

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   Feb 19, 2024 · Overview. Symptoms. When to see a doctor. Causes. Risk factors. Complications. Prevention. Overview. Elevated blood pressure is blood pressure that is slightly higher than what is considered ideal. Blood pressure is measured in millimeters of mercury (mm Hg).