How does a fever help your body when sick?

When you're sick, your body's immune system kicks into action to fight off the invading germs. Part of this response involves raising your body temperature, which leads to a fever.

Here's how a fever helps fight infection:

* Inhibits bacterial and viral growth: Many bacteria and viruses that cause infections are particularly sensitive to higher temperatures. Raising your body temperature makes it more difficult for these microbes to reproduce and spread.

* Enhances immune system activity: A higher body temperature stimulates the production of various immune cells and enhances their ability to detect and destroy infected cells. This boosts the efficiency of the immune response.

* Limits iron availability: During infections, pathogenic bacteria require iron to multiply. Elevated body temperature reduces the amount of freely available iron, making it harder for bacteria to thrive.

* Enhances circulation: Fever causes increased blood flow throughout the body, delivering more immune cells and other vital substances to infected tissues. Enhanced circulation supports faster healing.

* Promotes sleep: Feeling restless due to an illness is common. However, a fever tends to induce sleepiness and fatigue. Sleep plays a crucial role in helping the body repair and fight infections.

It's worth noting that while fever has these beneficial effects, extremely high fever can be harmful and require medical attention. Generally, it's okay to let a moderate fever do its job at your body's natural defense mechanism. However, always consult a healthcare professional if you are concerned or if your fever is accompanied by severe symptoms or persists for an unusually long time.