Achoo! How fast does a sneeze travel?
Brains On! Science podcast for kids
Deep Dive
Why do we sneeze?
We sneeze to expel irritants like dust, dirt, or pollen from our noses. It's a reflex triggered by tiny hairs in the nostrils that send a signal to the brain to initiate a sneeze.
Why can't we stop a sneeze once it starts?
A sneeze is a reflex, similar to a knee-jerk reaction. Once the brain sends the signal to sneeze, it's difficult to stop because it involves multiple muscles in the chest, stomach, and head.
Why is it important to cover your mouth when you sneeze?
Sneezes can release a cloud of germs and droplets that can make others sick. Covering your mouth helps prevent the spread of these germs.
How fast do sneezes travel?
Sneezes can travel at speeds of over 40 miles per hour, which is comparable to the top speed of a racehorse.
Why does our body produce more mucus when we're sick?
When you're sick, your body produces more mucus to filter out and trap bacteria, viruses, and other irritants. The mucus also helps to expel these harmful substances through sneezing and blowing the nose.
Why does mucus change color when we're sick?
Mucus changes color because the cells fighting the infection release proteins that turn the mucus different colors. This is part of the body's mechanism to expel bacteria and other waste products.
Why is nasal mucus important?
Nasal mucus helps protect the body by filtering out dust, bacteria, and allergens. It also humidifies the air we breathe, making it easier to inhale and protecting the nasal passages.
Why is picking your nose bad?
Picking your nose can cause nosebleeds and introduce bacteria from your hands into your nasal passages, which can lead to infections.
What should you do instead of picking your nose?
Instead of picking your nose, you should blow your nose with a tissue. Using a humidifier or a saltwater nose spray can also help thin out mucus and make it easier to clear.
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