When we get sick, one of the first signs our body gives us is a fever. It feels uncomfortable and makes us tired, but it’s actually one of the body’s smartest ways to protect itself.
A fever is when your body temperature rises above 38°C (100°F). It usually happens when your immune system detects something harmful, like a virus, bacteria, or fungus. However, it can also occur after a vaccination or because of inflammatory or autoimmune diseases.
When germs enter the body, the brain sends a signal to increase the temperature. This heat makes it harder for those harmful microorganisms to survive or multiply. In other words, a fever creates an environment that is uncomfortable for viruses and bacteria but helpful for your body to fight them off.
Even though a fever can make you feel weak, shivery, or sweaty, it’s often a sign that your immune system is doing its job. In most cases, fevers are mild and go away on their own once the infection is under control.
Doctors usually recommend rest, hydration, and light food during a fever. Over-the-counter medicines like paracetamol can help lower the temperature if it becomes too high or uncomfortable. But if the fever lasts more than a few days, or goes above 39.5°C (103°F), it’s best to seek medical attention.
In short, while fevers are never pleasant, they are a natural part of healing. They remind us that our bodies are constantly working to protect us even when we’re lying in bed, wrapped in blankets, waiting to feel better.