十万个为什么·科学启蒙30篇（3）

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身体调高体温来对抗细菌和病毒

When germs enter your body, immune cells release chemicals that raise your temperature.
This fever helps slow down viruses and bacteria while speeding up your healing process.
You might feel cold and shiver first, even though your thermometer reads higher.
Drinking water and resting help your body manage the extra work safely.
A mild fever below 38.5°C usually means your defense system is working well.
Doctors don’t always treat low fevers because stopping them can delay recovery.
Wearing light clothes and using a cool cloth feels better than heavy blankets.
Children often run higher fevers than adults, but most are harmless and short-lived.
If fever lasts more than three days or goes above 40°C, call your doctor right away.
Never give aspirin to kids with fever — use acetaminophen or ibuprofen instead.