What causes nosebleeds?
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If you’ve never had a nosebleed before, the first one can be terrifying. Why is blood pouring out of your face? Life Noggin investigates.
Why does dry air cause nosebleeds?
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TED-Ed Best of Web are exceptional, user-created lessons that are carefully selected by volunteer teachers and TED-Ed staff.
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- Video created by Life Noggin
- Lesson Plan created by Cynthia Silva
