/u/shwarma_heaven's posts in /r/askscience

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Do toilets cause hemorrhoids?

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Can a single COVID test be used for all strains of the virus? I understand it has been around for a while, but this is a new strain. If the virus mutated, as they suspected in South Korea, would the test still be able to detect it?

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What is a brain freeze?

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Why is it that when I scratch the ear canal of my right ear, it makes me want a cough and tickles my throat? Is this common? Do they share a nerve?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Do toilets cause hemorrhoids?	1
Can a single COVID test be used for all strains of the virus? I understand it has been around for a while, but this is a new strain. If the virus mutated, as they suspected in South Korea, would the test still be able to detect it?	1
What is a brain freeze?	1
Why is it that when I scratch the ear canal of my right ear, it makes me want a cough and tickles my throat? Is this common? Do they share a nerve?	1