why do you get a fever when you are sick

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Do you remember the last time you got? It may have started out as an upset stomach or a sore throat with a cough. Eventually, though, you may have started to feel very tired and extremely warm. Placing your hand on your forehead revealed what you suspected: a sweaty forehead that felt much warmer than normal. What are we talking about? A fever, of course! A fever is a sure
that your body is fighting something and likely needs some medicine. Human beings have a normal body of about 98. 6j F. Some people may have a normal body slightly above or below this. Your may also vary naturally throughout the day, running a little cooler in the morning and a little warmer in the evening. For the most part, though, an upward from 98. 6j F means you have a fever. The body\’s is by a part of the brain called the. Located in the center of the brain, the is like the body\’s. It keeps track of changes to your body and sends messages to the different parts of the body to keep it at the proper. So how do fevers occur?

They\’re most often caused by the invasion of germs, such as. Germs can cause certain chemicals to enter your, making you. When the detects these chemicals in your blood, it communicates with the rest of your body to set your internal higher. For example, rather than the normal 98. 6j F, your might tell your body to raise its to 102j F. Although it\’s no fun to have a fever, raising your body\’s helps to fight the germs making you by making your body a less comfortable place for them to be. A fever also lets you know you have an infection that needs to be treated. When you get a fever, you often shiver a bit at first. is actually one of the ways your body uses to create more to get your body to the new, higher setting directed by the. Once your body gets to its new, you\’ll feel plenty warm. As soon as your body is able to fight the off, usually with the help of some medicine, your will reset your body\’s back to 98. 6j F. You will likely begin to more as your body uses the process of to help cool you down to the correct.

Most fevers resolve themselves on their own. However, fevers in very young infants can be dangerous. In addition, extremely high fevers of 104j F or higher in children might also contacting a doctor. For most regular fevers, over-the-counter like acetaminophen and ibuprofen will help fight a fever. If you have a fever, you\’ll also want to drink lots of fluids. As your body heats up with a fever, it can easily become, so be sure to include plenty of fluids along with some extra rest. We\’ve all been there: burning up with fever, yet shivering with chills. It turns out that what feels like a bizarre internal thermostat malfunction is actually the body\’s way of fighting infection. Viruses and bacteria multiply less well above 98. 6 degrees Fahrenheit (F). \”Part of our immune system\’s response against infection includes raising the body\’s temperature to diminish the ability of microbes to reproduce,\” says, senior associate at the Johns Hopkins Center for Health Security in Baltimore.

A fever, or rise in body temperature, of even just a degree or two can stop a virus\’s ability to grow. When the brain increases the body\’s temperature set point, the body strives to meet that higher temperature. You feel cold because technically you are colder than your body\’s new set point. In turn, the body works to generate heat to warm itself by contracting and relaxing muscles в hence the shivering, or chills. The length of a fever can vary significantly depending on its cause. Possible sources abound, from to,В , and. Other reasons for fever include autoimmune disorders, like and, as well asВ , and even certain drugs. In children, fever can flare after immunizations. \”In some cases with a mild viral illness, a fever can last for a day, or it can last for weeks to months with systemic infections,\” says Dr. Adalja. The first thing to do is play detective to determine the cause of your fever based on the signs and symptoms of your illness, he says.

When Is Treatment Needed? The right treatment for body chills with fever depends on the cause, and that\’s where your doctor might need to step in. Call your doctor in any of the following cases: The fever is accompanied by serious symptoms, like shortness of breath, neck stiffness, headache, rash, swelling of a joint, abdominal pain, or extreme fatigue. The fever is high, or lasts longer than two or three days. You have any serious medical issues and develop a fever. For infants (under 1 year old), call the pediatrician if their temperature is higher than 101 degrees F. Call 911 if anything unusual or alarming accompanies the fever and chills, such as when someone with a fever experiences any of these symptoms: Barring any of the above situations, getting through chills and fever calls for sensible care. Rest and drink plenty of fluids to prevent dehydration. A lukewarm (not cold) bath might help, as can taking or в don\’t give. A little TLC can\’t hurt, either.

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