What triggers the coughing reflex when you have a respiratory viral
Chapter 1

Meet the microscopic hijackers

Chapter 2

Why winter is virus prime time

Chapter 3

Your body's brilliant defenses

Chapter 4

The shape-shifters and the missing cure

YOUR GOAL

Master of Inside the microscopic battle for your nose

Ch 3 · Your body's brilliant defenses
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doctorx Body Defenses

Turn the heat up! Turn the heat up! A fever stops the virus.

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What feels like a malfunction is often a system defending itself.

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The deep lung sweep of coughing

doctorx Viral irritation in the throat and lungs triggers a sudden burst of air that clears out excess mucus.

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The high-speed flush of a sneeze

doctorx An isometric 3D render shows the high-speed spray of droplets from a sneeze.

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Fun Fact

Fever power: Raising body temperature by just one degree Celsius increases the production and speed of white blood cells.

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Glossary
fever (noun)
An abnormally high body temperature, typically occurring as a symptom of disease or infection. Elevating body temperature above 37 degrees Celsius helps the body inhibit the replication of invading influenza viruses.

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Gossip

Which sick-day comfort food reigns supreme?

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Quiz

How much mucus does a healthy human body produce every single day to trap foreign invaders?

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Quiz

What is the primary biological purpose of a fever during a viral infection?

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Quiz

Which immune cells work faster and more efficiently when your body temperature rises during a fever?

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Quiz

What is the primary job of the tiny, hair-like cilia lining your respiratory tract?

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Quiz

What proteins are found in mucus that actively bind to and neutralize invading viruses?

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Quiz

What triggers the coughing reflex when you have a respiratory viral infection?

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Quiz

Which brain region acts as the body's thermostat, raising the temperature setting when a virus is detected?

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Quiz

Why shouldn't you always try to suppress a mild fever immediately with medication?

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