Tag: Viral

While most fevers resolve within a few days, it is not uncommon for a fever to go away and come back. This phenomenon, often referred to as an intermittent or recurrent fever, signals that your body is still actively fighting an infection or inflammation.

According to the National Institutes of Health, a fever is not an illness itself but a sign your body is actively fighting an infection. This regulated increase in body temperature is a core part of the immune response, confirming that, yes, being sick can raise your temperature.

Approximately one-third of ambulatory care patients report fever to their primary care provider. Knowing what can spike a fever is key to understanding this common symptom, as it serves as a sign that the body's immune system is responding to an underlying issue.

While it can feel difficult to pinpoint, viral infections are the most frequent culprits behind the vague feeling of being unwell known as malaise. Although a simple cold can be the trigger, understanding **what is the most common cause of malaise** involves recognizing a broader range of potential factors, both temporary and chronic, that can lead to this universal symptom.

According to the Centers for Disease Control and Prevention (CDC), millions of Americans are diagnosed with sinusitis annually, impacting productivity. Knowing **how long should you stay off work with a sinus infection?** is crucial for your recovery and preventing the spread of illness to colleagues.

The body's temperature is carefully regulated by a part of the brain called the hypothalamus, acting as your internal thermostat. When your immune system detects an unwelcome visitor, like a virus or bacterium, it raises this thermostat setting, triggering a fever. Infections are the most common cause of fever, signaling your body is actively fighting back.

While the widely accepted 'normal' human body temperature is 98.6°F (37°C), it's a well-known fact that this can vary. Understanding **what is a low-grade fever range** is key to identifying when your immune system is simply fighting off a mild intruder.